com.bbn.openmap.layer.mif
Class OMSubtraction

java.lang.Object
  |
  +--com.bbn.openmap.omGraphics.geom.BasicGeometry
        |
        +--com.bbn.openmap.omGraphics.OMGraphic
              |
              +--com.bbn.openmap.layer.mif.OMSubtraction

All Implemented Interfaces:

java.lang.Cloneable, OMGeometry, OMGraphicConstants, java.io.Serializable

public class OMSubtraction

extends OMGraphic

implements java.io.Serializable

Defines a Region of a MIF file where when one region encloses another the enclosed region is subtracted from the enclosing region in order to create a hole Computationally this can be expensive to do on a complex layout like a streetmap of city

See Also:

Serialized Form

Field Summary

Fields inherited from class com.bbn.openmap.omGraphics.OMGraphic

declutterType, displayPaint, edgeMatchesFill, fillPaint, hasLabel, linePaint, matted, mattingPaint, renderType, selected, selectPaint, showEditablePalette, stroke, textureMask

Fields inherited from class com.bbn.openmap.omGraphics.geom.BasicGeometry

APP_OBJECT_KEY, appObject, ATT_MAP_KEY, lineType, needToRegenerate, shape, visible

Fields inherited from interface com.bbn.openmap.omGraphics.OMGraphicConstants

ADD_GRAPHIC_MASK, BASIC_STROKE, clear, DECIMAL_DEGREES, DECLUTTERTYPE_LINE, DECLUTTERTYPE_MOVE, DECLUTTERTYPE_NONE, DECLUTTERTYPE_SPACE, DEFAULT_ROTATIONANGLE, DELETE_GRAPHIC_MASK, DESELECT_GRAPHIC_MASK, DESELECTALL_GRAPHIC_MASK, GRAPHICTYPE_ARC, GRAPHICTYPE_BITMAP, GRAPHICTYPE_CIRCLE, GRAPHICTYPE_GRAPHIC, GRAPHICTYPE_GRID, GRAPHICTYPE_LINE, GRAPHICTYPE_POINT, GRAPHICTYPE_POLY, GRAPHICTYPE_RASTER, GRAPHICTYPE_RECTANGLE, GRAPHICTYPE_TEXT, INFOLINE, LABEL, LINETYPE_GREATCIRCLE, LINETYPE_RHUMB, LINETYPE_STRAIGHT, LINETYPE_UNKNOWN, LOWER_GRAPHIC_MASK, LOWER_TO_BOTTOM_GRAPHIC_MASK, RADIANS, RAISE_GRAPHIC_MASK, RAISE_TO_TOP_GRAPHIC_MASK, RENDERTYPE_LATLON, RENDERTYPE_OFFSET, RENDERTYPE_UNKNOWN, RENDERTYPE_XY, SELECT_GRAPHIC_MASK, SORT_GRAPHICS_MASK, TOOLTIP, UPDATE_GRAPHIC_MASK

Constructor Summary

OMSubtraction(float[] lat, float[] lon)

Method Summary

float	distance(int x, int y) Return the shortest distance from the line to an XY-point - not relevant to this class.
boolean	generate(Projection proj) Prepare the graphic for rendering.
void	render(java.awt.Graphics g) Paint the graphic.

Methods inherited from class com.bbn.openmap.omGraphics.OMGraphic

clone, deselect, getDeclutterType, getDescription, getDescription, getDisplayColor, getDisplayPaint, getEdgeMatchesFill, getFillColor, getFillPaint, getHasLabel, getLineColor, getLinePaint, getMattingPaint, getRenderType, getSelectColor, getSelectPaint, getShowEditablePalette, getStroke, getTextureMask, hasLineTypeChoice, initLabelingDuringGenerate, isClear, isMatted, isSelected, normalizeDistanceForLineWidth, regenerate, renderLabel, select, setDeclutterType, setEdgeMatchesFill, setFillColor, setFillPaint, setGraphicsColor, setGraphicsForEdge, setGraphicsForFill, setHasLabel, setLabelLocation, setLabelLocation, setLabelLocation, setLineColor, setLinePaint, setMatted, setMattingPaint, setRenderType, setSelectColor, setSelected, setSelectPaint, setShape, setShowEditablePalette, setStroke, setTextureMask, shouldRenderEdge, shouldRenderFill

Methods inherited from class com.bbn.openmap.omGraphics.geom.BasicGeometry

_distance, appendShapeEdge, appendShapeEdge, appendShapeEdge, appendShapeEdge, checkAttributeMap, checkAttributeMap, clearAttributes, contains, createAttributeMap, createBoxShape, createShape, createShape, describeShapeDetail, describeShapeDetail, distanceToEdge, draw, fill, getAppObject, getAppObject, getAttribute, getAttributeMap, getAttributes, getLineType, getNeedToRegenerate, getShape, isRenderable, isVisible, putAttribute, removeAttribute, replaceAppObjectWithAttributeMap, setAppObject, setAppObject, setAttributes, setLineType, setNeedToRegenerate, setVisible

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.bbn.openmap.omGraphics.OMGeometry

clearAttributes, contains, draw, fill, getAppObject, getAttribute, getAttributes, getLineType, getNeedToRegenerate, getShape, isRenderable, isVisible, putAttribute, removeAttribute, setAppObject, setAttributes, setLineType, setNeedToRegenerate, setVisible

Constructor Detail

OMSubtraction

public OMSubtraction(float[] lat,
                     float[] lon)

Method Detail

generate

public boolean generate(Projection proj)

Description copied from class: OMGraphic

Prepare the graphic for rendering. This must be done before calling render()! If a vector graphic has lat-lon components, then we project these vertices into x-y space. For raster graphics we prepare in a different fashion.

If the generate is unsuccessful, it's usually because of some oversight, (for instance if proj is null), and if debugging is enabled, a message may be output to the controlling terminal.

Specified by:

generate in interface OMGeometry

Specified by:

generate in class OMGraphic

Parameters:

proj - Projection

Returns:

boolean true if successful, false if not.

See Also:

OMGraphic.regenerate(com.bbn.openmap.proj.Projection)

render

public void render(java.awt.Graphics g)

Description copied from class: OMGraphic

Paint the graphic. This paints the graphic into the Graphics context. This is similar to paint() function of java.awt.Components. Note that if the graphic has not been generated, it will not be rendered.

This method used to be abstract, but with the conversion of OMGraphics to internally represent themselves as java.awt.Shape objects, it's a more generic method. If the OMGraphic hasn't been updated to use Shape objects, it should have its own render method.

Overrides:

render in class OMGraphic

Parameters:

g - Graphics2D context to render into.

distance

public float distance(int x,
                      int y)

Return the shortest distance from the line to an XY-point - not relevant to this class.

Specified by:

distance in interface OMGeometry

Overrides:

distance in class OMGraphic

Parameters:

x - X coordinate of the point.

y - Y coordinate fo the point.

Returns:

float always zero