| gdk-Points-Rectangles-and-Regions {RGtk2} | R Documentation |
Simple graphical data types
gdkRectangleIntersect(src1, src2)
gdkRectangleUnion(src1, src2)
gdkRegionNew()
gdkRegionPolygon(points, fill.rule)
gdkRegionCopy(object)
gdkRegionRectangle(rectangle)
gdkRegionGetClipbox(object)
gdkRegionGetRectangles(object)
gdkRegionEmpty(object)
gdkRegionEqual(object, region2)
gdkRegionPointIn(object, x, y)
gdkRegionRectIn(object, rect)
gdkRegionOffset(object, dx, dy)
gdkRegionShrink(object, dx, dy)
gdkRegionUnionWithRect(object, rect)
gdkRegionIntersect(object, source2)
gdkRegionUnion(object, source2)
gdkRegionSubtract(object, source2)
gdkRegionXor(object, source2)
gdkRegionSpansIntersectForeach(object, spans, sorted, fun, data)
GDK provides the GdkPoint, GdkRectangle, GdkRegion and GdkSpan data types
for representing pixels and sets of pixels on the screen.
GdkPoint is a simple structure containing an x and y coordinate of a point.
GdkRectangle is a structure holding the position and size of a rectangle.
The intersection of two rectangles can be computed with
gdkRectangleIntersect. To find the union of two rectangles use
gdkRectangleUnion.
GdkRegion is an opaque data type holding a set of arbitrary pixels, and is
usually used for clipping graphical operations (see gdkGCSetClipRegion).
GdkSpan is a structure holding a spanline. A spanline is a horizontal line that
is one pixel wide. It is mainly used when rasterizing other graphics primitives.
It can be intersected to regions by using gdkRegionSpansIntersectForeach.
GdkPointGdkPoint is a transparent-type.
xy
GdkRectangleGdkRectangle is a transparent-type.
xywidthheight
GdkRegion
GdkSpanx, y and ending before x + width, y.
GdkSpan is a transparent-type.
xywidth
GdkFillRuleGdkRegion from a polygon.
The fill rule is only relevant for polygons which overlap themselves.
even-odd-rulewinding-rule
GdkOverlapTypegdkRegionRectIn.
inGdkRegion.outGdkRegion.partGdkRegion.
GdkSpanFunc(span, data)gdkRegionSpansIntersectForeach.
spanGdkSpan] a GdkSpan.datagdkRegionSpansIntersectForeach.
Derived by RGtkGen from GTK+ documentation
http://developer.gnome.org/doc/API/2.0/gdk/gdk-Points-Rectangles-and-Regions.html