Why do charts with a skew take longer to display?
The interface currently available for ArcView to read image files does not include the notion of skew. ArcView displays images by creating a rectangular mesh of pixels, based on the location of the upper left pixel, the size of this pixel, and the number of rows and columns of data in the image. Therefore, the extension must perform the rotation and store a rotated version of the image in memory. ArcView then reads in rows of data from the image stored in memory. For small images, this is sufficiently fast and should not be a burden on the user. However, large images may require significant memory resources and time to be displayed. For skewed charts, an information window will pop up and give an indication of how much memory will be required to rotate the image. If your machine has less memory than the amount required, it may take a long time to draw the image and you will hear a lot of disk activity as your machine uses virtual memory to perform the task. Note that each time you pan,
