AlDraw Files

AlDraw

How to install and run:
Before you can use this, you'll need Java installed
Download AlDraw.zip
Extract what's inside it
The file AlDraw.jar is executable. Double-clicking on it, or opening it with
java should work.

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How to use it:
AlDraw is a tool for geometrical constructions. You cannot make arbitrary
figures, you can only do what you could do with a compass and a ruler. All
drawing is done by selecting points. If you make a mistake and select the wrong
point, you can deselect all points by right-clicking the mouse.

It can save and open it's own binary file format. It can also export SVG files.

It has a copy and paste feature but it's a little bit unintuitive. First, you
have to select the shapes you want to copy. Then you select two copy points for
reference, and then two paste points. The first points of the pairs affects
translation - a first paste point to the left of a first copy point will result
in shapes moved to the left. The second points of the pairs affects scaling and
rotation in the same way.

It can zoom, pan and rotate. Panning and rotating are done with the menu
options and their hotkeys. Zooming can be done with the menu options, and also
with the scroll wheel. Zooming with the scroll wheel will focus on where the
cursor is. The option "Default View" will revert the zoom, pan and rotation
back to their original settings. The option "Auto Zoom" will recenter the image
and zoom in or out to make it as large as possible while still fitting inside
the window. Auto Zoom will not affect the rotation. The window can also be
resized.

Options in the "Basic" menu are basic construction functionality.

Options in the "Extended" menu are things that can't be done with just a
compass and straightedge. It includes the ability to save a distance (as if
marking a ruler) and drawing a line segment that distance or a circle with that
radius.

Options in the "Shortcuts" menu are things that can be done using only a
compass and straightedge, but that would require many steps.

Options in the "Clean Up" menu are things that you can use to remove parts of
the construction you no longer want or need.

Options in the "Color" menu allow you to color enclosed areas. Only enclosed
areas can be filled. If an area has a "donut hole" in the middle of it, the
inner area will be filled along with the outer area. To avoid this, draw a line
connecting the hole to the outer border, color the area, and delete the line.
Colored areas will be exported to SVG, but not printed.