本文整理汇总了C++中ConvexPolygon::GetParallelSlices方法的典型用法代码示例。如果您正苦于以下问题：C++ ConvexPolygon::GetParallelSlices方法的具体用法？C++ ConvexPolygon::GetParallelSlices怎么用？C++ ConvexPolygon::GetParallelSlices使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ConvexPolygon的用法示例。
在下文中一共展示了ConvexPolygon::GetParallelSlices方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
//////////////////
// GradientLayerMesh
GradientLayerMesh::GradientLayerMesh(const Rect &rect,Vec2 axisStart,Vec2 axisEnd,const Gradient *gradient)
{
ConvexPolygon rectPol =
{
rect.GetCorner(0),
rect.GetCorner(2),
rect.GetCorner(3),
rect.GetCorner(1),
};
std::vector<float> slicePositions;
for(int i = 0;i < gradient->GetNumVertices();i++)
{
slicePositions.push_back(gradient->GetVertexPos(i));
}
Vec2 axis = axisEnd - axisStart;
axis /= axis.GetSqrLen();
float axisOffset = -Dot(axis,axisStart);
std::vector<ParallelSlice> slices = rectPol.GetParallelSlices(
axisStart,axisEnd,slicePositions.data(),(int)slicePositions.size());
for(const ParallelSlice &slice : slices)
{
int seg = slice.GetSegment();
if(seg == 0)
{
std::vector<Triangle2D> tris = slice.GetPolygon().Triangulate();
for(const Triangle2D &tri : tris)
{
mVertices.push_back(tri.mVertices[0]);
mVertices.push_back(tri.mVertices[1]);
mVertices.push_back(tri.mVertices[2]);
mColors.push_back(MakeVec4(1,0,0,1));
mColors.push_back(MakeVec4(0,1,0,1));
mColors.push_back(MakeVec4(0,0,1,1));
}
}
else if(seg == gradient->GetNumVertices())
{
std::vector<Triangle2D> tris = slice.GetPolygon().Triangulate();
for(const Triangle2D &tri : tris)
{
mVertices.push_back(tri.mVertices[0]);
mVertices.push_back(tri.mVertices[1]);
mVertices.push_back(tri.mVertices[2]);
mColors.push_back(MakeVec4(1,0,0,1));
mColors.push_back(MakeVec4(0,1,0,1));
mColors.push_back(MakeVec4(0,0,1,1));
}
}
else
{
std::vector<Triangle2D> tris = slice.GetPolygon().Triangulate();
for(const Triangle2D &tri : tris)
{
for(int i = 0;i < 3;i++)
{
mVertices.push_back(tri.mVertices[i]);
float t = Dot(axis,tri.mVertices[i]) + axisOffset;
float segT = (t - slicePositions[seg - 1]) / (slicePositions[seg] - slicePositions[seg - 1]);
Vec4 color = gradient->GetVertexColor(seg - 1) * (1 - segT) + gradient->GetVertexColor(seg) * segT;
mColors.push_back(color);
}
}
}
}
}