Files
OpenSpace/modules/vislab/rendering/renderabledistancelabel.cpp
2020-01-09 12:19:59 +01:00

108 lines
4.8 KiB
C++

/*****************************************************************************************
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* OpenSpace *
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* Copyright (c) 2014-2020 *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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#include <modules/vislab/rendering/renderabledistancelabel.h>
#include <modules/base/rendering/renderablenodeline.h>
#include <openspace/documentation/documentation.h>
#include <openspace/documentation/verifier.h>
#include <openspace/engine/globals.h>
#include <openspace/rendering/renderengine.h>
#include <openspace/scene/scene.h>
#include <string>
namespace {
constexpr const char* _loggerCat = "RenderableDistanceLabel";
constexpr openspace::properties::Property::PropertyInfo NodeLineInfo = {
"NodeLine",
"Node Line",
"Property to track a nodeline. When tracking the label text will be updating the distance "
"from the nodeline start and end. "
};
}
namespace openspace {
documentation::Documentation RenderableDistanceLabel::Documentation() {
using namespace documentation;
return {
"Renderable Distance Label",
"vislab_renderable_distance_label",
{
{
NodeLineInfo.identifier,
new StringVerifier,
Optional::No,
NodeLineInfo.description
},
}
};
}
RenderableDistanceLabel::RenderableDistanceLabel(const ghoul::Dictionary& dictionary)
: RenderableLabels(dictionary)
, _nodeLine(NodeLineInfo)
{
documentation::testSpecificationAndThrow(
Documentation(),
dictionary,
"RenderableDistanceLabel"
);
if (dictionary.hasKey(NodeLineInfo.identifier)) {
_nodeLine = dictionary.value<std::string>(NodeLineInfo.identifier);
addProperty(_nodeLine);
}
}
void RenderableDistanceLabel::update(const UpdateData& data) {
if (global::renderEngine.scene()->sceneGraphNode(_nodeLine)) {
// Calculate distance
SceneGraphNode* nodelineNode = global::renderEngine.scene()->sceneGraphNode(_nodeLine);
RenderableNodeLine* nodeline = dynamic_cast<RenderableNodeLine*>(nodelineNode->renderable());
double myDistance = nodeline->getDistance();
// format string
float scale = getUnit(Kilometer);
std::string distanceText = std::to_string(std::round(myDistance / scale));
int pos = distanceText.find(".");
std::string subStr = distanceText.substr(pos);
distanceText.erase(pos, subStr.size());
std::string finalText = distanceText + " Km";
setLabelText(finalText);
// Update placement of label with transformation matrix
glm::dvec3 start = global::renderEngine.scene()->sceneGraphNode(nodeline->_start)->worldPosition();
glm::dvec3 end = global::renderEngine.scene()->sceneGraphNode(nodeline->_end)->worldPosition();
glm::dvec3 goalPos = start + (end - start) / 2.0;
_transformationMatrix = glm::translate(glm::dmat4(1.0), goalPos);
}
}
} // namespace openspace