Auto Resize

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Auto Resize is a feature to quickly resize map images to fit the current grid.

To resize stamps to fit the MapTool map's existing grid:

• Drag your map image onto the background (recommended) or object layer to create a stamp out of the image
• Right click your new stamp and select Auto Resize.... The cursor will change to a cross hair which lets you create a bounding selection box over the stamp.
• Right-Click and Drag and scroll your mouse wheel to position your map with an block of cells to select that are clear easy to count. Often the best cells are ones without walls touching them, since the walls on many map images obscure the actual grid lines.
• Place the cross hairs as close to the center of a grid intersection at one corner of your chosen range as possible.

  Note: You are selecting grid cells on the image of the map stamp, not the MapTool grid!

• Left-Click and Drag your mouse select your cells and release the mouse button to the center if the grid intersection at the opposite corner of your chosen range.
• Once you select a number of grid cells a dialog will open where you can enter the number of cells you selected. Hit 'OK'.

  Tip: If the grid still doesn't line up, uncheck 'Snap to Grid' on your stamp and try Map -> Adjust Grid.... From here tweak the offsets (not the grid size) to get the MapTool grid to line up with the stamp's grid.

Once you hit OK, MapTool resizes the stamp so that one "Map cell" will equal one "MapTool Grid Cell" and also align the image so the "Map Cells" should match the Grid. This is done by adjusting the "Anchor points" so the map will/can still be set to "Snap to Grid".

You are allowed to "tweak" the selection in case your mouse hands are not steady and can not exactly select an area perfectly, or the map is bad or pixelated. A lot of times you may find a map has exact dimensions, eg 2000x1800, so if your select is showing 298 x 302, most likely the grid would be in even multiples and you should change it to 300x300 for better results.

You can resize as many times as you want. Sometimes it may be easier to resize it to blow it up and get it close, turn the MapTool Grid on/off, check things, resize again to fine tune it.

Not all maps will be perfect. Some maps get skewed or have large grids lines so finding good start/stop points can be difficult. But for the most part, I think it will get you decent results and you can still resize it manually to fine tune.