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/* |
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Teem: Tools to process and visualize scientific data and images . |
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Copyright (C) 2013, 2012, 2011, 2010, 2009 University of Chicago |
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Copyright (C) 2008, 2007, 2006, 2005 Gordon Kindlmann |
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Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998 University of Utah |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public License |
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(LGPL) as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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The terms of redistributing and/or modifying this software also |
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include exceptions to the LGPL that facilitate static linking. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public License |
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along with this library; if not, write to Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "limn.h" |
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int |
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limnObjectCubeAdd(limnObject *obj, unsigned int lookIdx) { |
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unsigned int vII[4], vII0, partIdx; |
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partIdx = limnObjectPartAdd(obj); |
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/* HEY: we have to set this first so that |
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obj->setVertexRGBAFromLook can do the right thing */ |
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obj->part[partIdx]->lookIdx = lookIdx; |
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/* |
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7 6 |
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z 4 5 |
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| y |
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| / 3 2 |
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| / |
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| / 0 1 |
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------ x |
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*/ |
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vII0 = limnObjectVertexAdd(obj, partIdx, -1, -1, -1); |
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limnObjectVertexAdd(obj, partIdx, 1, -1, -1); |
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limnObjectVertexAdd(obj, partIdx, 1, 1, -1); |
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limnObjectVertexAdd(obj, partIdx, -1, 1, -1); |
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limnObjectVertexAdd(obj, partIdx, -1, -1, 1); |
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limnObjectVertexAdd(obj, partIdx, 1, -1, 1); |
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limnObjectVertexAdd(obj, partIdx, 1, 1, 1); |
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limnObjectVertexAdd(obj, partIdx, -1, 1, 1); |
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ELL_4V_SET(vII, vII0+3, vII0+2, vII0+1, vII0+0); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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ELL_4V_SET(vII, vII0+1, vII0+5, vII0+4, vII0+0); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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ELL_4V_SET(vII, vII0+2, vII0+6, vII0+5, vII0+1); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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ELL_4V_SET(vII, vII0+3, vII0+7, vII0+6, vII0+2); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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ELL_4V_SET(vII, vII0+0, vII0+4, vII0+7, vII0+3); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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ELL_4V_SET(vII, vII0+5, vII0+6, vII0+7, vII0+4); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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return partIdx; |
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} |
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int |
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limnObjectSquareAdd(limnObject *obj, unsigned int lookIdx) { |
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unsigned int vII0, vII[4], partIdx; |
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partIdx = limnObjectPartAdd(obj); |
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/* HEY: we have to set this first so that |
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obj->setVertexRGBAFromLook can do the right thing */ |
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obj->part[partIdx]->lookIdx = lookIdx; |
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vII0 = limnObjectVertexAdd(obj, partIdx, 0, 0, 0); |
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limnObjectVertexAdd(obj, partIdx, 1, 0, 0); |
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limnObjectVertexAdd(obj, partIdx, 1, 1, 0); |
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limnObjectVertexAdd(obj, partIdx, 0, 1, 0); |
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ELL_4V_SET(vII, vII0+0, vII0+1, vII0+2, vII0+3); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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return partIdx; |
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} |
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/* |
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******** limnObjectCylinderAdd |
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** |
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** adds a cylinder that fills up the bi-unit cube [-1,1]^3, |
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** with axis "axis" (0:X, 1:Y, 2:Z), with discretization "res" |
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*/ |
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int |
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limnObjectCylinderAdd(limnObject *obj, unsigned int lookIdx, |
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unsigned int axis, unsigned int res) { |
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unsigned int partIdx, ii, jj, tmp, vII0=0, *vII; |
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double theta; |
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partIdx = limnObjectPartAdd(obj); |
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/* HEY: we have to set this first so that |
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obj->setVertexRGBAFromLook can do the right thing */ |
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obj->part[partIdx]->lookIdx = lookIdx; |
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vII = (unsigned int *)calloc(res, sizeof(unsigned int)); |
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for (ii=0; ii<=res-1; ii++) { |
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theta = AIR_AFFINE(0, ii, res, 0, 2*AIR_PI); |
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switch(axis) { |
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case 0: |
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tmp = limnObjectVertexAdd(obj, partIdx, |
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1, |
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AIR_CAST(float, -sin(theta)), |
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AIR_CAST(float, cos(theta))); |
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limnObjectVertexAdd(obj, partIdx, |
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-1, |
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AIR_CAST(float, -sin(theta)), |
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AIR_CAST(float, cos(theta))); |
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break; |
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case 1: |
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tmp = limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, sin(theta)), |
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1, |
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AIR_CAST(float, cos(theta))); |
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limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, sin(theta)), |
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-1, |
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AIR_CAST(float, cos(theta))); |
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break; |
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case 2: default: |
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tmp = limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, cos(theta)), |
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AIR_CAST(float, sin(theta)), |
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1); |
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limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, cos(theta)), |
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AIR_CAST(float, sin(theta)), |
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-1); |
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break; |
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} |
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if (!ii) { |
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vII0 = tmp; |
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} |
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} |
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/* add all side faces */ |
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for (ii=0; ii<=res-1; ii++) { |
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jj = (ii+1) % res; |
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ELL_4V_SET(vII, vII0 + 2*ii, vII0 + 2*ii + 1, |
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vII0 + 2*jj + 1, vII0 + 2*jj); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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} |
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/* add top */ |
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for (ii=0; ii<=res-1; ii++) { |
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vII[ii] = vII0 + 2*ii; |
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} |
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limnObjectFaceAdd(obj, partIdx, lookIdx, res, vII); |
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/* add bottom */ |
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for (ii=0; ii<=res-1; ii++) { |
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vII[ii] = vII0 + 2*(res-1-ii) + 1; |
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} |
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limnObjectFaceAdd(obj, partIdx, lookIdx, res, vII); |
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free(vII); |
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return partIdx; |
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} |
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int |
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limnObjectConeAdd(limnObject *obj, unsigned int lookIdx, |
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unsigned int axis, unsigned int res) { |
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double th; |
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unsigned int partIdx, tmp, vII0=0, ii, jj, *vII; |
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vII = (unsigned int *)calloc(res, sizeof(unsigned int)); |
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partIdx = limnObjectPartAdd(obj); |
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/* HEY: we have to set this first so that |
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obj->setVertexRGBAFromLook can do the right thing */ |
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obj->part[partIdx]->lookIdx = lookIdx; |
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for (ii=0; ii<=res-1; ii++) { |
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th = AIR_AFFINE(0, ii, res, 0, 2*AIR_PI); |
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switch(axis) { |
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case 0: |
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tmp = limnObjectVertexAdd(obj, partIdx, |
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0, |
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AIR_CAST(float, -sin(th)), |
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AIR_CAST(float, cos(th))); |
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break; |
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case 1: |
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tmp = limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, sin(th)), |
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0, |
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AIR_CAST(float, cos(th))); |
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break; |
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case 2: default: |
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tmp = limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, cos(th)), |
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AIR_CAST(float, sin(th)), |
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0); |
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break; |
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} |
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if (!ii) { |
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vII0 = tmp; |
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} |
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} |
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switch(axis) { |
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case 0: |
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limnObjectVertexAdd(obj, partIdx, 1, 0, 0); |
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break; |
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case 1: |
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limnObjectVertexAdd(obj, partIdx, 0, 1, 0); |
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break; |
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case 2: default: |
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limnObjectVertexAdd(obj, partIdx, 0, 0, 1); |
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break; |
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} |
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for (ii=0; ii<=res-1; ii++) { |
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jj = (ii+1) % res; |
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ELL_3V_SET(vII, vII0+ii, vII0+jj, vII0+res); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 3, vII); |
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} |
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for (ii=0; ii<=res-1; ii++) { |
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vII[ii] = vII0+res-1-ii; |
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} |
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limnObjectFaceAdd(obj, partIdx, lookIdx, res, vII); |
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free(vII); |
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return partIdx; |
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} |
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int |
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limnObjectPolarSphereAdd(limnObject *obj, unsigned int lookIdx, |
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unsigned int axis, unsigned int thetaRes, |
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unsigned int phiRes) { |
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unsigned int partIdx, vII0, nti, ti, pi, vII[4], pl; |
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double t, p; |
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thetaRes = AIR_MAX(thetaRes, 3); |
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phiRes = AIR_MAX(phiRes, 2); |
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partIdx = limnObjectPartAdd(obj); |
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/* HEY: we have to set this first so that |
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obj->setVertexRGBAFromLook can do the right thing */ |
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obj->part[partIdx]->lookIdx = lookIdx; |
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switch(axis) { |
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case 0: |
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vII0 = limnObjectVertexAdd(obj, partIdx, 1, 0, 0); |
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break; |
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case 1: |
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vII0 = limnObjectVertexAdd(obj, partIdx, 0, 1, 0); |
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break; |
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case 2: default: |
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vII0 = limnObjectVertexAdd(obj, partIdx, 0, 0, 1); |
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break; |
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} |
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for (pi=1; pi<=phiRes-1; pi++) { |
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p = AIR_AFFINE(0, pi, phiRes, 0, AIR_PI); |
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for (ti=0; ti<=thetaRes-1; ti++) { |
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t = AIR_AFFINE(0, ti, thetaRes, 0, 2*AIR_PI); |
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switch(axis) { |
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case 0: |
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limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, cos(p)), |
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AIR_CAST(float, -sin(t)*sin(p)), |
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AIR_CAST(float, cos(t)*sin(p))); |
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break; |
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case 1: |
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limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, sin(t)*sin(p)), |
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AIR_CAST(float, cos(p)), |
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AIR_CAST(float, cos(t)*sin(p))); |
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break; |
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case 2: default: |
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limnObjectVertexAdd(obj, partIdx, |
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AIR_CAST(float, cos(t)*sin(p)), |
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AIR_CAST(float, sin(t)*sin(p)), |
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AIR_CAST(float, cos(p))); |
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break; |
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} |
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} |
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} |
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switch(axis) { |
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case 0: |
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pl = limnObjectVertexAdd(obj, partIdx, -1, 0, 0); |
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break; |
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case 1: |
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pl = limnObjectVertexAdd(obj, partIdx, 0, -1, 0); |
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break; |
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case 2: default: |
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pl = limnObjectVertexAdd(obj, partIdx, 0, 0, -1); |
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break; |
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} |
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for (ti=1; ti<=thetaRes; ti++) { |
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nti = ti < thetaRes ? ti+1 : 1; |
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ELL_3V_SET(vII, vII0+ti, vII0+nti, vII0+0); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 3, vII); |
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} |
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for (pi=0; pi<=phiRes-3; pi++) { |
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for (ti=1; ti<=thetaRes; ti++) { |
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nti = ti < thetaRes ? ti+1 : 1; |
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ELL_4V_SET(vII, vII0+pi*thetaRes + ti, vII0+(pi+1)*thetaRes + ti, |
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vII0+(pi+1)*thetaRes + nti, vII0+pi*thetaRes + nti); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
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} |
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} |
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for (ti=1; ti<=thetaRes; ti++) { |
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nti = ti < thetaRes ? ti+1 : 1; |
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ELL_3V_SET(vII, vII0+pi*thetaRes + ti, pl, vII0+pi*thetaRes + nti); |
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limnObjectFaceAdd(obj, partIdx, lookIdx, 3, vII); |
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} |
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return partIdx; |
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} |
310 |
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311 |
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int |
312 |
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limnObjectPolarSuperquadFancyAdd(limnObject *obj, |
313 |
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unsigned int lookIdx, unsigned int axis, |
314 |
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float A, float B, float C, float R, |
315 |
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unsigned int thetaRes, unsigned int phiRes) { |
316 |
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unsigned int partIdx, vII0, nti, ti, pi, vII[4], pl; |
317 |
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double x, y, z, t, p; |
318 |
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319 |
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AIR_UNUSED(R); |
320 |
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thetaRes = AIR_MAX(thetaRes, 3); |
321 |
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phiRes = AIR_MAX(phiRes, 2); |
322 |
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323 |
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partIdx = limnObjectPartAdd(obj); |
324 |
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/* HEY: we have to set this first so that |
325 |
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obj->setVertexRGBAFromLook can do the right thing */ |
326 |
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obj->part[partIdx]->lookIdx = lookIdx; |
327 |
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switch(axis) { |
328 |
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case 0: |
329 |
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vII0 = limnObjectVertexAdd(obj, partIdx, 1, 0, 0); |
330 |
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break; |
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case 1: |
332 |
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vII0 = limnObjectVertexAdd(obj, partIdx, 0, 1, 0); |
333 |
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break; |
334 |
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case 2: default: |
335 |
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vII0 = limnObjectVertexAdd(obj, partIdx, 0, 0, 1); |
336 |
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break; |
337 |
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} |
338 |
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for (pi=1; pi<=phiRes-1; pi++) { |
339 |
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p = AIR_AFFINE(0, pi, phiRes, 0, AIR_PI); |
340 |
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for (ti=0; ti<=thetaRes-1; ti++) { |
341 |
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t = AIR_AFFINE(0, ti, thetaRes, 0, 2*AIR_PI); |
342 |
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switch(axis) { |
343 |
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case 0: |
344 |
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x = airSgnPow(cos(p),B); |
345 |
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y = -airSgnPow(sin(t),A) * airSgnPow(sin(p),B); |
346 |
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z = airSgnPow(cos(t),A) * airSgnPow(sin(p),B); |
347 |
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if (C != B) { |
348 |
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/* modify profile along y axis to create beta=C */ |
349 |
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double yp, ymax; |
350 |
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yp = airSgnPow(sin(acos(airSgnPow(x, 1/C))), C); |
351 |
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ymax = airSgnPow(sin(p), B); |
352 |
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if (ymax) { |
353 |
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y *= yp/ymax; |
354 |
|
|
} |
355 |
|
|
} |
356 |
|
|
break; |
357 |
|
|
case 1: |
358 |
|
|
x = airSgnPow(sin(t),A) * airSgnPow(sin(p),B); |
359 |
|
|
y = airSgnPow(cos(p),B); |
360 |
|
|
z = airSgnPow(cos(t),A) * airSgnPow(sin(p),B); |
361 |
|
|
break; |
362 |
|
|
case 2: default: |
363 |
|
|
x = airSgnPow(cos(t),A) * airSgnPow(sin(p),B); |
364 |
|
|
y = airSgnPow(sin(t),A) * airSgnPow(sin(p),B); |
365 |
|
|
z = airSgnPow(cos(p),B); |
366 |
|
|
if (C != B) { |
367 |
|
|
/* modify profile along y axis to create beta=C */ |
368 |
|
|
double yp, ymax; |
369 |
|
|
yp = airSgnPow(sin(acos(airSgnPow(z, 1/C))), C); |
370 |
|
|
ymax = airSgnPow(sin(p), B); |
371 |
|
|
if (ymax) { |
372 |
|
|
y *= yp/ymax; |
373 |
|
|
} |
374 |
|
|
} |
375 |
|
|
break; |
376 |
|
|
} |
377 |
|
|
limnObjectVertexAdd(obj, partIdx, |
378 |
|
|
AIR_CAST(float, x), |
379 |
|
|
AIR_CAST(float, y), |
380 |
|
|
AIR_CAST(float, z)); |
381 |
|
|
} |
382 |
|
|
} |
383 |
|
|
switch(axis) { |
384 |
|
|
case 0: |
385 |
|
|
pl = limnObjectVertexAdd(obj, partIdx, -1, 0, 0); |
386 |
|
|
break; |
387 |
|
|
case 1: |
388 |
|
|
pl = limnObjectVertexAdd(obj, partIdx, 0, -1, 0); |
389 |
|
|
break; |
390 |
|
|
case 2: default: |
391 |
|
|
pl = limnObjectVertexAdd(obj, partIdx, 0, 0, -1); |
392 |
|
|
break; |
393 |
|
|
} |
394 |
|
|
for (ti=1; ti<=thetaRes; ti++) { |
395 |
|
|
nti = ti < thetaRes ? ti+1 : 1; |
396 |
|
|
ELL_3V_SET(vII, vII0+ti, vII0+nti, vII0+0); |
397 |
|
|
limnObjectFaceAdd(obj, partIdx, lookIdx, 3, vII); |
398 |
|
|
} |
399 |
|
|
for (pi=0; pi<=phiRes-3; pi++) { |
400 |
|
|
for (ti=1; ti<=thetaRes; ti++) { |
401 |
|
|
nti = ti < thetaRes ? ti+1 : 1; |
402 |
|
|
ELL_4V_SET(vII, vII0+pi*thetaRes + ti, vII0+(pi+1)*thetaRes + ti, |
403 |
|
|
vII0+(pi+1)*thetaRes + nti, vII0+pi*thetaRes + nti); |
404 |
|
|
limnObjectFaceAdd(obj, partIdx, lookIdx, 4, vII); |
405 |
|
|
} |
406 |
|
|
} |
407 |
|
|
for (ti=1; ti<=thetaRes; ti++) { |
408 |
|
|
nti = ti < thetaRes ? ti+1 : 1; |
409 |
|
|
ELL_3V_SET(vII, vII0+pi*thetaRes + ti, pl, vII0+pi*thetaRes + nti); |
410 |
|
|
limnObjectFaceAdd(obj, partIdx, lookIdx, 3, vII); |
411 |
|
|
} |
412 |
|
|
|
413 |
|
|
return partIdx; |
414 |
|
|
} |
415 |
|
|
|
416 |
|
|
int |
417 |
|
|
limnObjectPolarSuperquadAdd(limnObject *obj, |
418 |
|
|
unsigned int lookIdx, unsigned int axis, |
419 |
|
|
float A, float B, |
420 |
|
|
unsigned int thetaRes, unsigned int phiRes) { |
421 |
|
|
|
422 |
|
|
return limnObjectPolarSuperquadFancyAdd(obj, lookIdx, axis, |
423 |
|
|
A, B, B, 0, |
424 |
|
|
thetaRes, phiRes); |
425 |
|
|
} |