void Module::GetDrumCurve(std::string curveName, std::vector<float>& curve)
{
DrumCurve drumCurve = GetCurveType(curveName);
switch(drumCurve)
{
case DrumCurve::exponential:
Curves::Exponential(curve);
break;
default:
Curves::Linear(curve);
break;
}
return;
}
size_t
HdBasisCurvesTopology::CalculateNeededNumberOfVaryingControlPoints() const
{
if (GetCurveType() == HdTokens->linear){
// For linear curves, varying and vertex interpolation is identical.
return CalculateNeededNumberOfControlPoints();
}
size_t numVerts= 0;
int numSegs = 0, vStep = 0;
bool wrap = GetCurveWrap() == HdTokens->periodic;
if(GetCurveBasis() == HdTokens->bezier) {
vStep = 3;
}
else {
vStep = 1;
}
// Make absolutely sure the iterator is constant
// (so we don't detach the array while multi-threaded)
for (VtIntArray::const_iterator itCounts = _curveVertexCounts.cbegin();
itCounts != _curveVertexCounts.cend(); ++itCounts) {
// Handling for the case of potentially incorrect vertex counts
if (*itCounts < 1) {
continue;
}
// The number of verts is different if we have periodic vs non-periodic
// curves, check basisCurvesComputations.cpp line 207 for a diagram.
if (wrap) {
numSegs = *itCounts / vStep;
} else {
numSegs = ((*itCounts - 4) / vStep) + 1;
}
numVerts += numSegs + 1;
}
return numVerts;
}
// 传入的DOM模型为
// <Curve>
// <CurveType>CIRCLE</CurveType>
// <Params>
// <double>-0.05</double>
// <double>-0.050000000000000017</double>
// <double>0</double>
// <double>0</double>
// <double>-0</double>
// <double>-1</double>
// <double>0.01</double>
// <double>0</double>
// <double>0</double>
// <double>0</double>
// <double>0</double>
// </Params>
// </Curve>
void CurveInputDecorator::Parse(const char *id, xercesc::DOMElement* element) {
if (NULL == element)
return;
vaar_data::CurveType type = vaar_data::CurveType::LINE_CURVE;
double params[CURVE_PARAMS_LENGTH];
xercesc::DOMElement* current_element = NULL;
int i = 0;
// 解析类型
element = element->getFirstElementChild();
if (NULL != element &&
0 == strcmp("CurveType", xercesc::XMLString::transcode(element->getTagName()))) {
type = GetCurveType(xercesc::XMLString::transcode(element->getTextContent()));
}
// 解析参数
element = element->getNextElementSibling();
if (NULL != element &&
0 == strcmp("Params", xercesc::XMLString::transcode(element->getTagName()))) {
current_element = element->getFirstElementChild();
do {
sscanf_s(
xercesc::XMLString::transcode(current_element->getTextContent()),
"%lf",
¶ms[i++]
);
} while (
current_element != element->getLastElementChild(),
current_element = current_element->getNextElementSibling()
);
}
// 填充对象
curve_ = std::tr1::shared_ptr<vaar_data::Curve>(new vaar_data::Curve(id, type, params));
}
