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ui: graph rastering

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Graph nodes are now placed within a raster. This is true for initial layout as well as drag-and-droped stuff.
This commit is contained in:
Manuel
2015-02-17 23:40:53 -08:00
parent 6c3c8cdcc1
commit 35867c17af
3 changed files with 104 additions and 17 deletions
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src/app/qt/utility/QtGraphPostprocessor.cpp
+95 -16
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@@ -1,10 +1,13 @@
#include "QtGraphPostprocessor.h"
unsigned int QtGraphPostprocessor::s_cellSize = 20;
unsigned int QtGraphPostprocessor::s_cellPadding = 10;
void QtGraphPostprocessor::doPostprocessing(std::list<std::shared_ptr<QtGraphNode>>& nodes)
{
unsigned int atomarGridSize = 20;
unsigned int atomarGridSize = s_cellSize;
resizeNodes(nodes, atomarGridSize);
resizeNodes(nodes);
if(nodes.size() < 2)
{
@@ -50,10 +53,66 @@ void QtGraphPostprocessor::doPostprocessing(std::list<std::shared_ptr<QtGraphNod
resolveOutliers(nodes, centerOfMass);
it = nodes.begin();
for(; it != nodes.end(); it++)
{
allignNodeOnRaster((*it).get());
}
MatrixDynamicBase<unsigned int> heatMap = buildHeatMap(nodes, divisor, maxNodeSize);
resolveOverlap(nodes, heatMap, divisor);
}
void QtGraphPostprocessor::allignNodeOnRaster(QtGraphNode* node)
{
Vec2i position = node->getPosition();
int rasterPosDivisor = s_cellSize + s_cellPadding;
if(position.x % rasterPosDivisor != 0)
{
int t = position.x / rasterPosDivisor;
int r = position.x % rasterPosDivisor;
if(std::abs(r) > rasterPosDivisor/2)
{
if(t != 0)
{
t += (t / std::abs(t));
}
else if(r != 0)
{
t += (r / std::abs(r));
}
}
position.x = t * rasterPosDivisor;
}
if(position.y % rasterPosDivisor != 0)
{
int t = position.y / rasterPosDivisor;
int r = position.y % rasterPosDivisor;
if (std::abs(r) > rasterPosDivisor/2)
{
if(t != 0)
{
t += (t / std::abs(t));
}
else if(r != 0)
{
t += (r / std::abs(r));
}
}
position.y = t * rasterPosDivisor;
}
node->setPosition(position);
}
void QtGraphPostprocessor::resolveOutliers(std::list<std::shared_ptr<QtGraphNode>>& nodes, const Vec2i& centerPoint)
{
float maxDist = 0.0f;
@@ -109,6 +168,7 @@ MatrixDynamicBase<unsigned int> QtGraphPostprocessor::buildHeatMap(const std::li
unsigned int x = left + i;
unsigned int y = up + j;
unsigned int value = heatMap.getValue(x, y);
heatMap.setValue(x, y, value+1);
}
}
@@ -173,24 +233,28 @@ void QtGraphPostprocessor::resolveOverlap(std::list<std::shared_ptr<QtGraphNode>
int xOffset = grad.x * divisor;
int yOffset = grad.y * divisor;
// prevent the graph from "exploding" again...
if(xOffset > divisor)
xOffset = divisor;
else if(xOffset < -divisor)
xOffset = -divisor;
if(yOffset > divisor)
yOffset = divisor;
else if(yOffset < -divisor)
yOffset = -divisor;
int maxOffset = 2*divisor;
// prevent the graph from "exploding" again...
if(xOffset > maxOffset)
xOffset = maxOffset;
else if(xOffset < -maxOffset)
xOffset = -maxOffset;
if(yOffset > maxOffset)
yOffset = maxOffset;
else if(yOffset < -maxOffset)
yOffset = -maxOffset;
Vec2i pos = (*it)->getPosition();
pos += Vec2i(xOffset, yOffset);
// grid allignment
pos.x = (pos.x / divisor) * divisor;
pos.y = (pos.y / divisor) * divisor;
// pos.x = (pos.x / divisor) * divisor;
// pos.y = (pos.y / divisor) * divisor;
(*it)->setPosition(pos);
allignNodeOnRaster((*it).get());
// re-add node to heat map at new position
nodePos.x = (*it)->getPosition().x / divisor + heatMapWidth/2;
nodePos.y = (*it)->getPosition().y / divisor + heatMapHeight/2;
@@ -275,13 +339,28 @@ bool QtGraphPostprocessor::getHeatmapGradient(Vec2f& outGradient, const MatrixDy
return overlap;
}
void QtGraphPostprocessor::resizeNodes(std::list<std::shared_ptr<QtGraphNode>>& nodes, const unsigned int atomarSize)
void QtGraphPostprocessor::resizeNodes(std::list<std::shared_ptr<QtGraphNode>>& nodes)
{
std::list<std::shared_ptr<QtGraphNode>>::iterator it = nodes.begin();
for(; it != nodes.end(); it++)
{
Vec2i size = (*it)->getSize();
if(size.x % atomarSize != 0)
int newWidth = s_cellSize;
while(size.x - newWidth > 0)
{
newWidth += s_cellPadding + s_cellSize;
}
size.x = newWidth;
int newHeight = s_cellSize;
while(size.y - newHeight > 0)
{
newHeight += s_cellPadding + s_cellSize;
}
size.y = newHeight;
/*if(size.x % atomarSize != 0)
{
int multiplier = size.x / atomarSize;
++multiplier;
@@ -295,7 +374,7 @@ void QtGraphPostprocessor::resizeNodes(std::list<std::shared_ptr<QtGraphNode>>&
++multiplier;
size.y = atomarSize * multiplier;
}
}*/
(*it)->setSize(size);
}