Lines Matching defs:tangent
179 SkVector* tangent) {
186 if (tangent) {
187 tangent->set(eval_quad_derivative(&src[0].fX, t),
192 void SkEvalQuadAtHalf(const SkPoint src[3], SkPoint* pt, SkVector* tangent) {
202 if (tangent) {
203 tangent->set(eval_quad_derivative_at_half(&src[0].fX),
428 SkVector* tangent, SkVector* curvature) {
435 if (tangent) {
436 tangent->set(eval_cubic_derivative(&src[0].fX, t),
1288 void SkConic::evalAt(SkScalar t, SkPoint* pt, SkVector* tangent) const {
1295 if (tangent) {
1296 tangent->set(conic_eval_tan(&fPts[0].fX, fW, t),