How to | Get Coordinates for Points in a Plot

Mathematica's interactive graphics capabilities let you determine the coordinates of a single point. You can also get arbitrary sequences of points and paths, and analyze and manipulate the coordinate lists like any other data in Mathematica.

Selected examples from the video:

With the Get Coordinates tool you can query, copy, and paste coordinates from any graphic or plot.

First, open the Drawing Tools palette from the Graphics menu:

In the Drawing Tools palette, choose the Get Coordinates tool:

When you hover over a graphic, the coordinates of the point under the cursor are displayed next to the cursor. Clicking a point marks the point in the graphic for later copying. Similarly, dragging marks a set of points along the path:

After clicking or dragging points, use Edit ► Copy to put the coordinates of the points on the clipboard:

Here, Edit ► Paste was used to paste in the selected coordinates:

Click for copyable input

To mark a rectangular area on a plot, do Alt+Drag on Windows or Option+Drag on Macintosh. You can resize a marked area using the resize handles. Clicking and dragging on a side of a rectangle will move it without resizing.

You can see here that two rectangular areas were drawn, and the resize handle appeared when the cursor was positioned over a corner:

Here, the coordinate values of the rectangles were copied and pasted in as before:

Click for copyable input

In the pasted data, each rectangle is represented by a list of the minimum and maximum coordinate values of the rectangle.

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