GH_Viewport Methods

Apply the current display transformation to a Graphics object.

Forces a recomputation of all cached data.

Advanced interface function for mouse 'dolly' zooming.

Look at a specific object.

Look at a set of specific objects.

Look at a specific point.

Look at a specific point.

Test visibility of a point.

Test visibility of a rectangle.

Utility function for calculating pixel dimensions in a zoom-aware environment. The desired value is put through the zoom projection and if the resulting size (as displayed on the screen) exceeds the visual limits it is clipped. This function can be used for example to make sure that a certain penwidth never exceeds visual limits (i.e. it doesn't get too thin or too thick on the screen).

Transform a point from canvas into control coordinate space.

Project a point from canvas coordinates into control coordinates.

Project a rectangle from canvas coordinates into control coordinates.

Project a value along constant X from canvas coordinates into control coordinates.

Project a value along constant Y from canvas coordinates into control coordinates.

Utility function for calculating graphics dimensions in a zoom-aware environment. This function can be used for example to compute the linewidth of a pen which always needs to appear as 3 pixels thick on the screen regardless of zoom values.

Transform a point from control into canvas coordinate space.

Project a point from control coordinates into canvas coordinates.

Project a rectangle from control coordinates into canvas coordinates.

Project a value along constant X from control coordinates into canvas coordinates.

Project a value along constant Y from control coordinates into canvas coordinates.

Gets the display transformation cached by this viewport.