Creates a viewport object that is positioned in the same location as a previously exported viewport.
The purpose of this function is so that we can recreate content for later manipulation.
viewportCreate(vpname, newname = NULL, vpPath.sep = getSVGoption("vpPath.sep"))
The name of the viewport to be recreated, as stored in coordinate information. This is most likely a viewport path.
The name that is going to be assigned to the viewport as it is
re-created. If this parameter is
The viewport path separator that was used for
In order to use this function, coordinate information must be
gridSVG. This means that viewport information must
be imported using
ROOT viewport must also have coordinate information
imported because the created viewport is positioned relative to this.
A viewport object.
## Not run: require(grid) grid.newpage() # Pushing a new VP to draw a rect within pushViewport(viewport(x = unit(0.3, "npc"), y = unit(0.2, "npc"), width = unit(0.1, "npc"), height = unit(0.3, "npc"), xscale = c(0, 20), yscale = c(0, 10), name = "testVP")) grid.rect() grid.export("create-test.svg", exportCoords = "file") # Importing coordinate information gridSVGCoords(readCoordsJS("create-test.svg.coords.js")) # This should appear to be the same rect grid.newpage() pushViewport(viewportCreate("testVP.1")) grid.rect() # Let's see if the scales are accurate, should be: # xscale: [0, 20] # yscale: [0, 10] current.viewport()$xscale current.viewport()$yscale ## End(Not run)
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