A 2D graphics item for rendering a heatmap. More...
#include <vtkHeatmapItem.h>
Detailed Description
A 2D graphics item for rendering a heatmap.
This item draws a heatmap as a part of a vtkContextScene.
.SEE ALSO vtkTable
- Tests:
- vtkHeatmapItem (Tests)
Definition at line 50 of file vtkHeatmapItem.h.
Member Typedef Documentation
Reimplemented from vtkContextItem.
Definition at line 54 of file vtkHeatmapItem.h.
Member Enumeration Documentation
| anonymous enum |
Enum for Orientation.
Definition at line 120 of file vtkHeatmapItem.h.
Constructor & Destructor Documentation
| vtkHeatmapItem::vtkHeatmapItem | ( | ) | [protected] |
| vtkHeatmapItem::~vtkHeatmapItem | ( | ) | [protected] |
Member Function Documentation
| static vtkHeatmapItem* vtkHeatmapItem::New | ( | ) | [static] |
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
Reimplemented from vtkObject.
| static int vtkHeatmapItem::IsTypeOf | ( | const char * | name | ) | [static] |
Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.
Reimplemented from vtkContextItem.
| virtual int vtkHeatmapItem::IsA | ( | const char * | name | ) | [virtual] |
Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.
Reimplemented from vtkContextItem.
| static vtkHeatmapItem* vtkHeatmapItem::SafeDownCast | ( | vtkObjectBase * | o | ) | [static] |
Reimplemented from vtkContextItem.
| virtual vtkObjectBase* vtkHeatmapItem::NewInstanceInternal | ( | ) | const [protected, virtual] |
Reimplemented from vtkContextItem.
| vtkHeatmapItem* vtkHeatmapItem::NewInstance | ( | ) | const |
Reimplemented from vtkContextItem.
| virtual void vtkHeatmapItem::PrintSelf | ( | ostream & | os, |
| vtkIndent | indent | ||
| ) | [virtual] |
Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from vtkContextItem.
| virtual void vtkHeatmapItem::SetTable | ( | vtkTable * | table | ) | [virtual] |
Set the table that this item draws. The first column of the table must contain the names of the rows.
Get the table that this item draws.
| void vtkHeatmapItem::SetOrientation | ( | int | orientation | ) |
Set which way the table should face within the visualization.
Get the current heatmap orientation.
| double vtkHeatmapItem::GetTextAngleForOrientation | ( | int | orientation | ) |
Get the angle that row labels should be rotated for the correponding heatmap orientation. For the default orientation (LEFT_TO_RIGHT), this is 0 degrees.
| virtual void vtkHeatmapItem::SetPosition | ( | float | , |
| float | |||
| ) | [virtual] |
Set the position of the heatmap.
| void vtkHeatmapItem::SetPosition | ( | float | [2] | ) |
Set the position of the heatmap.
| void vtkHeatmapItem::SetPosition | ( | const vtkVector2f & | pos | ) |
Set the position of the heatmap.
| virtual float* vtkHeatmapItem::GetPosition | ( | ) | [virtual] |
Get position of the heatmap.
| virtual void vtkHeatmapItem::GetPosition | ( | float & | , |
| float & | |||
| ) | [virtual] |
Get position of the heatmap.
| virtual void vtkHeatmapItem::GetPosition | ( | float | [2] | ) | [virtual] |
Get position of the heatmap.
Get position of the heatmap.
| virtual double vtkHeatmapItem::GetCellHeight | ( | ) | [virtual] |
Get/Set the height of the cells in our heatmap. Default is 18 pixels.
| virtual void vtkHeatmapItem::SetCellHeight | ( | double | ) | [virtual] |
Get/Set the height of the cells in our heatmap. Default is 18 pixels.
| virtual double vtkHeatmapItem::GetCellWidth | ( | ) | [virtual] |
Get/Set the width of the cells in our heatmap. Default is 36 pixels.
| virtual void vtkHeatmapItem::SetCellWidth | ( | double | ) | [virtual] |
Get/Set the width of the cells in our heatmap. Default is 36 pixels.
| virtual void vtkHeatmapItem::GetBounds | ( | double | bounds[4] | ) | [virtual] |
Get the bounds for this item as (Xmin,Xmax,Ymin,Ymax).
| void vtkHeatmapItem::MarkRowAsBlank | ( | std::string | rowName | ) |
Mark a row as blank, meaning that no cells will be drawn for it. Used by vtkTreeHeatmapItem to represent missing data.
| virtual bool vtkHeatmapItem::Paint | ( | vtkContext2D * | painter | ) | [virtual] |
Paints the table as a heatmap.
Reimplemented from vtkAbstractContextItem.
| virtual float vtkHeatmapItem::GetRowLabelWidth | ( | ) | [virtual] |
Get the width of the largest row or column label drawn by this heatmap.
| virtual float vtkHeatmapItem::GetColumnLabelWidth | ( | ) | [virtual] |
Get the width of the largest row or column label drawn by this heatmap.
| virtual bool vtkHeatmapItem::Hit | ( | const vtkContextMouseEvent & | mouse | ) | [virtual] |
Returns true if the transform is interactive, false otherwise.
Reimplemented from vtkAbstractContextItem.
| virtual bool vtkHeatmapItem::MouseMoveEvent | ( | const vtkContextMouseEvent & | event | ) | [virtual] |
Display a tooltip when the user mouses over a cell in the heatmap.
Reimplemented from vtkAbstractContextItem.
| virtual bool vtkHeatmapItem::MouseDoubleClickEvent | ( | const vtkContextMouseEvent & | event | ) | [virtual] |
Display a legend for a column of data.
Reimplemented from vtkAbstractContextItem.
| virtual void vtkHeatmapItem::RebuildBuffers | ( | ) | [protected, virtual] |
Generate some data needed for painting. We cache this information as it only needs to be generated when the input data changes.
| virtual void vtkHeatmapItem::PaintBuffers | ( | vtkContext2D * | painter | ) | [protected, virtual] |
This function does the bulk of the actual work in rendering our heatmap.
| virtual bool vtkHeatmapItem::IsDirty | ( | ) | [protected, virtual] |
This function returns a bool indicating whether or not we need to rebuild our cached data before painting.
| void vtkHeatmapItem::InitializeLookupTables | ( | ) | [protected] |
Generate a separate vtkLookupTable for each column in the table.
| void vtkHeatmapItem::AccumulateProminentCategoricalDataValues | ( | vtkIdType | column | ) | [protected] |
Helper function. Find the prominent, distinct values in the specified column of strings and add it to our "master list" of categorical values. This list is then used to generate a vtkLookupTable for all categorical data within the heatmap.
| void vtkHeatmapItem::GenerateContinuousDataLookupTable | ( | ) | [protected] |
Setup the default lookup table to use for continuous (not categorical) data.
| void vtkHeatmapItem::GenerateCategoricalDataLookupTable | ( | ) | [protected] |
Setup the default lookup table to use for categorical (not continuous) data.
| std::string vtkHeatmapItem::GetTooltipText | ( | float | x, |
| float | y | ||
| ) | [protected] |
Get the value for the cell of the heatmap located at scene position (x, y) This function assumes the caller has already determined that (x, y) falls within the heatmap.
| void vtkHeatmapItem::UpdateVisibleSceneExtent | ( | vtkContext2D * | painter | ) | [protected] |
Calculate the extent of the data that is visible within the window. This information is used to ensure that we only draw details that will be seen by the user. This improves rendering speed, particularly for larger data.
| bool vtkHeatmapItem::LineIsVisible | ( | double | x0, |
| double | y0, | ||
| double | x1, | ||
| double | y1 | ||
| ) | [protected] |
Returns true if any part of the line segment defined by endpoints (x0, y0), (x1, y1) falls within the extent of the currently visible scene. Returns false otherwise.
| void vtkHeatmapItem::ComputeBounds | ( | ) | [protected] |
Compute the extent of the heatmap. This does not include the text labels.
| void vtkHeatmapItem::ComputeLabelWidth | ( | vtkContext2D * | painter | ) | [protected] |
Compute the width of our longest row label and the width of our longest column label. These values are used by GetBounds().
| void vtkHeatmapItem::PositionColorLegend | ( | int | orientation | ) | [protected] |
| void vtkHeatmapItem::PositionLegends | ( | int | orientation | ) | [protected] |
Member Data Documentation
vtkVector2f vtkHeatmapItem::PositionVector [protected] |
Definition at line 144 of file vtkHeatmapItem.h.
float* vtkHeatmapItem::Position [protected] |
Definition at line 145 of file vtkHeatmapItem.h.
vtkSmartPointer<vtkTable> vtkHeatmapItem::Table [protected] |
Definition at line 208 of file vtkHeatmapItem.h.
The documentation for this class was generated from the following file:
- dox/Views/Infovis/vtkHeatmapItem.h
