本文整理汇总了Java中prefuse.util.force.ForceItem类的典型用法代码示例。如果您正苦于以下问题：Java ForceItem类的具体用法？Java ForceItem怎么用？Java ForceItem使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ForceItem类属于prefuse.util.force包，在下文中一共展示了ForceItem类的5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，您的评价将有助于我们的系统推荐出更棒的Java代码示例。
示例1: reset
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import prefuse.util.force.ForceItem; //导入依赖的package包/类
/**
* Reset the force simulation state for all nodes processed
* by this layout.
*/
public void reset() {
Iterator iter = m_vis.visibleItems(m_nodeGroup);
while ( iter.hasNext() ) {
VisualItem item = (VisualItem)iter.next();
ForceItem fitem = (ForceItem)item.get(FORCEITEM);
if ( fitem != null ) {
fitem.location[0] = (float)item.getEndX();
fitem.location[1] = (float)item.getEndY();
fitem.force[0] = fitem.force[1] = 0;
fitem.velocity[0] = fitem.velocity[1] = 0;
}
}
m_lasttime = -1L;
}
开发者ID:luox12，
项目名称:onecmdb，
代码行数:19，
代码来源:ForceDirectedLayout.java
示例2: initSimulator
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import prefuse.util.force.ForceItem; //导入依赖的package包/类
/**
* Loads the simulator with all relevant force items and springs.
* @param fsim the force simulator driving this layout
*/
protected void initSimulator(ForceSimulator fsim) {
// make sure we have force items to work with
TupleSet ts = m_vis.getGroup(m_nodeGroup);
if ( ts == null ) return;
try {
ts.addColumns(FORCEITEM_SCHEMA);
} catch ( IllegalArgumentException iae ) { /* ignored */ }
float startX = (referrer == null ? 0f : (float)referrer.getX());
float startY = (referrer == null ? 0f : (float)referrer.getY());
startX = Float.isNaN(startX) ? 0f : startX;
startY = Float.isNaN(startY) ? 0f : startY;
Iterator iter = m_vis.visibleItems(m_nodeGroup);
while ( iter.hasNext() ) {
VisualItem item = (VisualItem)iter.next();
ForceItem fitem = (ForceItem)item.get(FORCEITEM);
fitem.mass = getMassValue(item);
double x = item.getEndX();
double y = item.getEndY();
fitem.location[0] = (Double.isNaN(x) ? startX : (float)x);
fitem.location[1] = (Double.isNaN(y) ? startY : (float)y);
fsim.addItem(fitem);
}
if ( m_edgeGroup != null ) {
iter = m_vis.visibleItems(m_edgeGroup);
while ( iter.hasNext() ) {
EdgeItem e = (EdgeItem)iter.next();
NodeItem n1 = e.getSourceItem();
ForceItem f1 = (ForceItem)n1.get(FORCEITEM);
NodeItem n2 = e.getTargetItem();
ForceItem f2 = (ForceItem)n2.get(FORCEITEM);
float coeff = getSpringCoefficient(e);
float slen = getSpringLength(e);
fsim.addSpring(f1, f2, (coeff>=0?coeff:-1.f), (slen>=0?slen:-1.f));
}
}
}
开发者ID:luox12，
项目名称:onecmdb，
代码行数:43，
代码来源:ForceDirectedLayout.java
示例3: reset
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import prefuse.util.force.ForceItem; //导入依赖的package包/类
/**
* Reset the force simulation state for all nodes processed
* by this layout.
*/
public void reset() {
Iterator<?> iter = m_vis.visibleItems(m_nodeGroup);
while ( iter.hasNext() ) {
VisualItem item = (VisualItem)iter.next();
ForceItem fitem = (ForceItem)item.get(FORCEITEM);
if ( fitem != null ) {
fitem.location[0] = (float)item.getEndX();
fitem.location[1] = (float)item.getEndY();
fitem.force[0] = fitem.force[1] = 0;
fitem.velocity[0] = fitem.velocity[1] = 0;
}
}
m_lasttime = -1L;
}
开发者ID:codydunne，
项目名称:netgrok，
代码行数:19，
代码来源:PolarDonutFDRLayout.java
示例4: updateNodePositions
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import prefuse.util.force.ForceItem; //导入依赖的package包/类
private void updateNodePositions() {
Rectangle2D bounds = getLayoutBounds();
double x1=0, x2=0, y1=0, y2=0;
if ( bounds != null ) {
x1 = bounds.getMinX(); y1 = bounds.getMinY();
x2 = bounds.getMaxX(); y2 = bounds.getMaxY();
}
// update positions
Iterator iter = m_vis.visibleItems(m_nodeGroup);
while ( iter.hasNext() ) {
VisualItem item = (VisualItem)iter.next();
ForceItem fitem = (ForceItem)item.get(FORCEITEM);
if ( item.isFixed() ) {
// clear any force computations
fitem.force[0] = 0.0f;
fitem.force[1] = 0.0f;
fitem.velocity[0] = 0.0f;
fitem.velocity[1] = 0.0f;
if ( Double.isNaN(item.getX()) ) {
setX(item, referrer, 0.0);
setY(item, referrer, 0.0);
}
continue;
}
double x = fitem.location[0];
double y = fitem.location[1];
if ( m_enforceBounds && bounds != null) {
Rectangle2D b = item.getBounds();
double hw = b.getWidth()/2;
double hh = b.getHeight()/2;
if ( x+hw > x2 ) x = x2-hw;
if ( x-hw < x1 ) x = x1+hw;
if ( y+hh > y2 ) y = y2-hh;
if ( y-hh < y1 ) y = y1+hh;
}
// set the actual position
setX(item, referrer, x);
setY(item, referrer, y);
}
}
开发者ID:luox12，
项目名称:onecmdb，
代码行数:47，
代码来源:ForceDirectedLayout.java
示例5: updateNodePositions
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import prefuse.util.force.ForceItem; //导入依赖的package包/类
private void updateNodePositions() {
Rectangle2D bounds = getLayoutBounds();
double x1=0, x2=0, y1=0, y2=0;
if ( bounds != null ) {
x1 = bounds.getMinX(); y1 = bounds.getMinY();
x2 = bounds.getMaxX(); y2 = bounds.getMaxY();
}
// update positions
TupleSet ts = m_vis.getGroup(m_nodeGroup);
Iterator<?> iter;
if (m_filter == null)
iter = ts.tuples();
else
iter = ts.tuples(m_filter);
while ( iter.hasNext() ) {
VisualItem item = (VisualItem)iter.next();
ForceItem fitem = (ForceItem)item.get(FORCEITEM);
if ( item.isFixed() ) {
// clear any force computations
fitem.force[0] = 0.0f;
fitem.force[1] = 0.0f;
fitem.velocity[0] = 0.0f;
fitem.velocity[1] = 0.0f;
if ( Double.isNaN(item.getX()) ) {
setX(item, referrer, 0.0);
setY(item, referrer, 0.0);
}
continue;
}
double x = fitem.location[0];
double y = fitem.location[1];
if ( m_enforceBounds && bounds != null) {
Rectangle2D b = item.getBounds();
double hw = b.getWidth()/2;
double hh = b.getHeight()/2;
if ( x+hw > x2 ) x = x2-hw;
if ( x-hw < x1 ) x = x1+hw;
if ( y+hh > y2 ) y = y2-hh;
if ( y-hh < y1 ) y = y1+hh;
}
// set the actual position
setX(item, referrer, x);
setY(item, referrer, y);
}
}
开发者ID:codydunne，
项目名称:netgrok，
代码行数:57，
代码来源:PolarDonutFDRLayout.java
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