Searched refs:ds (Results 1 - 4 of 4) sorted by relevance

/inkscape/share/extensions/
H A Dparam_curves.py77 ds = step * 0.001 # Step used in calculating derivatives
99 t1 = t_start + ds # Second point AFTER first point (Good for first point)
102 dx0 = (x1 - x0)/ds
103 dy0 = (y1 - y0)/ds
109 t2 = t1 - ds # Second point BEFORE first point (Good for last point)
116 dx1 = (x1 - x2)/ds
117 dy1 = (y1 - y2)/ds
H A Dfuncplot.py98 ds = step * 0.001 # Step used in calculating derivatives
124 x1 = xstart + ds # Second point AFTER first point (Good for first point)
131 dx0 = (x1 - x0)/ds
132 dy0 = (y1 - y0)/ds
146 x2 = x1 - ds # Second point BEFORE first point (Good for last point)
159 dx1 = (x1 - x2)/ds
160 dy1 = (y1 - y2)/ds
/inkscape/src/libcola/
H A Dstraightener.cpp69 list<unsigned> ds(dummyNodes.size());
70 copy(dummyNodes.begin(),dummyNodes.end(),ds.begin());
71 //printf("Edge::nodePath: (%d,%d) dummyNodes:%d\n",startNode,endNode,ds.size());
77 for(list<unsigned>::iterator j=ds.begin();j!=ds.end();) {
90 ds.erase(copyit);
99 assert(ds.empty());
/inkscape/src/live_effects/
H A Dspiro.cpp97 double ds = 1. / n; local
98 double ds2 = ds * ds;
99 double ds3 = ds2 * ds;
100 double k0 = ks[0] * ds;
101 double k1 = ks[1] * ds;
102 double k2 = ks[2] * ds;
103 double k3 = ks[3] * ds;
105 double s = .5 * ds - .5;
118 km1 = k1 * ds;
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