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Catch and inform about errors

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The changes in how specular roughness and transparency is read in was
done to ensure type safety. If you added

    "transparency": "0.8"

to the file, then that would be silently ignored. In the new style, it
instead errors out if the type cannot be converted to a double.
This commit is contained in:
Jean Niklas L'orange
2018-10-11 16:07:59 +02:00
committed by Thomas Krijnen
parent afc7d82ca2
commit 048db115bd
2 changed files with 36 additions and 24 deletions
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src/ifcgeom/IfcGeomRenderStyles.cpp
+27 -21
View File
@@ -176,6 +176,25 @@ void InitDefaultMaterials() {
default_materials_initialized = true;
}
boost::optional<IfcGeom::SurfaceStyle::ColorComponent> read_colour_component(const boost::optional<pt::ptree&> list) {
if (!list) {
return boost::none;
}
double rgb[3];
int i = 0;
for (pt::ptree::value_type &colour : list.get()) {
if (3 <= i) {
throw std::runtime_error("rgb array over 3 elements large");
}
rgb[i] = colour.second.get_value<double>();
i++;
}
if (i != 3) {
throw std::runtime_error("rgb array less than 3 elements large (was " + std::to_string(i) + ")");
}
return IfcGeom::SurfaceStyle::ColorComponent(rgb[0], rgb[1], rgb[2]);
}
void IfcGeom::set_default_style(const std::string& json_file) {
if (!default_materials_initialized) InitDefaultMaterials();
default_materials.clear();
@@ -189,30 +208,17 @@ void IfcGeom::set_default_style(const std::string& json_file) {
pt::ptree material = material_pair.second;
boost::optional<pt::ptree&> diffuse = material.get_child_optional("diffuse");
if (diffuse) {
double rgb[3];
int i = 0;
for (pt::ptree::value_type &colour : diffuse.get()) {
rgb[i] = colour.second.get_value<double>();
i++;
}
default_materials[name].Diffuse().reset(IfcGeom::SurfaceStyle::ColorComponent(rgb[0], rgb[1], rgb[2]));
}
default_materials[name].Diffuse() = read_colour_component(diffuse);
boost::optional<pt::ptree&> specular = material.get_child_optional("specular");
if (specular) {
double rgb[3];
int i = 0;
for (pt::ptree::value_type &colour : specular.get()) {
rgb[i] = colour.second.get_value<double>();
i++;
}
default_materials[name].Specular().reset(IfcGeom::SurfaceStyle::ColorComponent(rgb[0], rgb[1], rgb[2]));
default_materials[name].Specular() = read_colour_component(specular);
if (material.get_child_optional("specular-roughness")) {
default_materials[name].Specularity().reset(1.0 / material.get<double>("specular-roughness"));
}
boost::optional<double> specular_roughness = material.get_optional<double>("specular-roughness");
if (specular_roughness) {
default_materials[name].Specularity().reset(1.0 / specular_roughness.get());
if (material.get_child_optional("transparency")) {
default_materials[name].Transparency() = material.get<double>("transparency");
}
default_materials[name].Transparency() = material.get_optional<double>("transparency");
}
// Is "*" present? If yes, remove it and make it the default style.