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public interface Camera
Method Summary | |
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double |
getGraphDimension()
A number in GU that gives the approximate graph size (often the diagonal of the graph). |
GraphMetrics |
getMetrics()
Get the GraphMetrics object linked to this Camera. |
Point3 |
getViewCenter()
The view centre (a point in graph units). |
double |
getViewPercent()
The portion of the graph visible. |
double |
getViewRotation()
The current rotation angle. |
boolean |
isVisible(GraphicElement element)
True if the element would be visible on screen. |
void |
removeGraphViewport()
Remove the specified graph view port. |
void |
resetView()
Reset the view to the automatic mode. |
void |
setAutoFitView(boolean on)
Enable or disable automatic adjustment of the view to see the entire graph. |
void |
setBounds(double minx,
double miny,
double minz,
double maxx,
double maxy,
double maxz)
Set the bounds of the graphic graph in GU. |
void |
setGraphViewport(double minx,
double miny,
double maxx,
double maxy)
Specify exactly the minimum and maximum points in GU that are visible (more points may be visible due to aspect-ratio constraints). |
void |
setViewCenter(double x,
double y,
double z)
Change the view centre. |
void |
setViewPercent(double percent)
Zoom the view. |
void |
setViewRotation(double theta)
Rotate the view around its centre point by a given theta angles (in degrees). |
Point3 |
transformGuToPx(double x,
double y,
double z)
Transform a point in graph units into pixels. |
Point3 |
transformPxToGu(double x,
double y)
Return the given point in pixels converted in graph units (GU) using the inverse transformation of the current projection matrix. |
Method Detail |
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Point3 getViewCenter()
void setViewCenter(double x, double y, double z)
x
- The new abscissa.y
- The new ordinate.z
- The new depth.double getViewPercent()
void setViewPercent(double percent)
percent
- Percent of the graph visible.double getViewRotation()
void setViewRotation(double theta)
theta
- The rotation angle in degrees.double getGraphDimension()
void removeGraphViewport()
setGraphViewport(double, double, double, double)
void setGraphViewport(double minx, double miny, double maxx, double maxy)
minx
- The minimum abscissa visible.miny
- The minimum ordinate visible.maxx
- The maximum abscissa visible.maxy
- The maximum abscissa visible.removeGraphViewport()
void resetView()
void setBounds(double minx, double miny, double minz, double maxx, double maxy, double maxz)
minx
- Lowest abscissa.miny
- Lowest ordinate.minz
- Lowest depth.maxx
- Highest abscissa.maxy
- Highest ordinate.maxz
- Highest depth.GraphMetrics getMetrics()
GraphMetrics
object linked to this Camera. It can be used
to convert pixels to graphic units and vice versa.
void setAutoFitView(boolean on)
on
- If true, automatic adjustment is enabled.Point3 transformGuToPx(double x, double y, double z)
Point3 transformPxToGu(double x, double y)
x
- The source point abscissa in pixels.y
- The source point ordinate in pixels.
boolean isVisible(GraphicElement element)
element
- The element to test.
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