Re: [R] plotting over a raster image with control over location and orientation

For base plotting functions (not grid) then you may be interested in the updateusr function in the TeachingDemos package. If you can find the current coordinates of 2 points on the 1st plot (the background image) that are not in the same horizontal or vertical line (use the locator function if not

Re: [R] plotting over a raster image with control over location and orientation

Hi,I am sorry for not having control checked the code before posting (in my earlier mail). I have done this now. I just have a simple question now. Why is the overlay plot (the final plot ) not falling into the intended position (as defined by the viewport vp2)?#Setting up the initial example r

Re: [R] plotting over a raster image with control over location and orientation

Hi,I havetried to find a simple way for my overlay plot. A simple summary of myapproach would to first plot the raster image and then overlay the second pot with : par(new=TRUE,plt=c(x1,x2,y1,y2)) # not sure if the plt or usr argument should be used# have some difficulty in knowing the units for

[R] plotting over a raster image with control over location and orientation

Hi,I would like to get some help in plotting over an image. I have a png image over which I would like to have a plot. I would like to be able to control the location, area and orientation of the plot on the image. I have taken help from the following references :http://journal.r-project.org/arc