Copyright: Copyright © 1995 Gamma Software


Contents
Edit

The commands on the Edit menu allow you to modify existing elements in the drawing.  Choose the File/Open command and select the file tutor8.gc1.

Click on the Edit menu to pull it down.  The commands Cut through List are grayed out and unselectable.  These commands operate on the current selection.  Therefore, you must select some elements before these commands can be used.

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page2
Edit

Move the arrow cursor to position 1 in the first figure below and click and drag the mouse pointer to position 2.  The elements in the drawing will be selected and drawn in the select color (light gray), as in the second figure below.

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page3
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Choose the Edit/Cut command.  The prompt area will display: Select cut reference point.  Move the mouse cursor to position 1 in the figure below and click the left mouse button.  The selected elements will be erased and placed in the clipboard.

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page4
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Choose the Edit/Paste command and select position 2 for the paste alignment point.  The elements you cut in the first step are pasted and redrawn as in the figure below.  Note, the cut reference point is lined up with the paste alignment point.  This is how you move elements around in the drawing area.  You can paste more than one copy of the elements.  The program is still prompting you for a paste alignment point.  Pick position 1 and another copy of the elements is placed in the drawing.

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page5
Edit

Choose the Edit/Undo command from the menu or click on the undo button [image] on the command tool bar.  The second copy of the drawing elements is removed, undoing the second paste command.  Choose Edit/Undo again and the first paste command is undone leaving a blank drawing.  Choose Undo a third time and the cut command is undone and the original drawing elements are displayed.  The undo command on the menu and the undo button are gray, meaning nothing else can be undone.

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page6
Edit

The undo command undoes Edit and Draw commands.  Each time you select the undo command, the program undoes a command.  The commands are undone in the reverse order you issued them, until all commands have been undone.  If all commands have been undone, the Undo command and tool bar button are grayed and unselectable.

The Edit/Copy command copies the drawing elements to the clipboard like the Cut command but it does not delete the original elements.  It is used to make copies of drawing elements.

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page7
Edit

Select all of the elements in the drawing again, as you did in the first part of this tutorial (move the mouse cursor to one corner of the drawing and click and drag it to the other).  Now, choose the Edit/Select/Remove command or click on the remove [image] button on the command tool bar.  Click and drag the cursor from position 1 to position 2 in the figure below.

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page8
Edit

The elements which crossed the selected area are removed from the selection.  Click on the remove tool bar button again to unpress it and go back to normal selection mode.

The Edit/Select/Add command and its corresponding tool bar button [image] allows you to add elements to the current selection, in the same way we removed them in the previous step.

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page9
Edit

The program is always in either add, remove or new selection mode.  When the program is in add mode, the add tool bar button is pressed and there is a check mark next to Add on the Edit/Select menu.  When the program is in remove mode, the remove tool bar button is pressed and Remove on the Edit/Select menu is checked.  When neither add nor remove is checked / pressed, the program is in new mode.  Choosing the add or remove command again, changes its state (i.e. turns it off if it is on and on if it is off).  Add and remove cannot both be on at the same time.

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page10
Edit

Choose the Edit/Rotate command.  The prompt area displays: Select rotation reference point.  Click on the Midpoint element snap button [image] and move the box cursor over the line in the center of the circle, as in the figure below.  Click the left mouse button.

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page11
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Enter "90" for the rotation angle in the dialog box which appears.  The rotation angle is in degrees counterclockwise.  The drawing will then look like the figure below.

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page12
Edit

Choose the Edit/Scale command.  Pick the same point for the scale reference point as you did for the rotation reference point (the midpoint of the line inside the circle).  Enter a scale factor of "0.5" in the scale factor dialog.  The drawing will now look like the figure below.

Choose the Edit/Delete command.  The selected elements are deleted from the drawing.  Choose the Edit/Undo command to bring them back.

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page13
Edit

Choose the Edit/Change command.  This command is used to change the properties associated with each selected element.  After choosing the Change command, a dialog is displayed which allows you to specify which property to change.  Click on the Line Color radio button and click on the OK button.  The color dialog is displayed.  Click on the red rectangle and click on OK.  You cannot see the effect of this command until you unselect the drawing elements.  Choose the Edit/Select/Clear command to see the color change.

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page14
Edit

The other change options function in the same way.  The second dialog which is displayed after the change dialog is the same dialog used to set the original properties of the drawing elements.  See the Properties tutorial for more information.

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page15
Edit

Select all the elements in the drawing.  Choose the Edit/List command.  A dialog is displayed which lists the properties of the first element in the drawing.  This is how you determine what properties are set for an element.  For example, if you want to find out what font a text string uses or you want to determine the coordinates of a line.  Click on OK.  The properties of the next element are listed.  Click on Cancel to end this command.  Choose Edit/Select/Clear to clear the selection.

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page16
Edit

Click on the Edit/Break end command on the menu.  The prompt area displays: Select end of line or arc to break.  Move the box cursor to position 1 in the first drawing below.  Click the left mouse button to select the line.  The prompt area then displays: Select break point.  Choose the Midpoint element snap and select position 1 again.  The right half of the line is deleted, as in the second figure.

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page17
Edit

Choose the Edit/Break middle command.  The prompt displays: Select a line, arc or circle to break.  Pick position 1 in the first figure below.  The prompt will display: Select first break point.  Set the Midpoint element snap mode and pick position 2.  The prompt area now displays: Select second break point.  Pick position 3 using the Midpoint element snap.  The circle will be broken, as in the second figure below.

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page18
Edit

Next we will look at the Edit/Extend command.  Choose this command and the program prompts you for the boundary for the extend.  This is the drawing element to which other drawing elements will be extended.  Select position 1 in the drawing below.  The prompt now changes to: Select line or arc to extend to the input boundary.  Pick positions 2 and 3.  The line and arc are extended to the boundary line.  The drawing now looks like the second figure.

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page19
Edit

Choose the Edit/Fillet command.  Click on OK to accept the default fillet radius of 0.  Select positions 1 and 2 in the first figure below.  Filleting 2 lines with a radius of 0 extends the lines so they meet each other, as in the second figure.

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page20
Edit

Choose the Edit/Fillet command again and enter "0.5" for the desired radius in the fillet dialog.  The program prompts you to pick 2 lines to fillet.  Select positions 1 and 2 in the first figure below and the top-right corner is filleted.  Pick positions 3 and 4 to fillet the top-left corner.  The drawing should now look like the second figure below.

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page21
Edit

The Edit/Change text command is used to change existing text strings.  Choose this command and move the box cursor over the text Tutor 8 at the top of the drawing.  Click the left mouse button and enter "Tutorial 8" in the dialog which is displayed.  The text is changed from Tutor 8 to Tutorial 8.

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page22
Edit

Choose the Edit/Open/Close a polyline command and move the box cursor over the polyline, as in the first figure below.  Click the left mouse button and the polyline is closed.  Click it again in the same position and the polyline is returned to its original state, open.

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page23
Edit

The last command we will look at on the Edit menu is the Copy bitmap command.  This command copies a rectangular area to the Windows clipboard as a bitmap.  You can then paste this bitmap into any other Windows program which supports pasting bitmaps.  Choose the Edit/Copy bitmap command.  Pick the first point at the lower-left corner of the page and the second point at the top-right corner of the page, as in the figure below.

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page24
Edit

Now bring up Program Manager and select the Write application in the Accessories group.  Choose the Edit/Paste command.  The GammaCAD drawing is placed in the Write document as a bitmap.  Choose File/Exit to exit Write and click on the No button to exit without saving.

This ends this tutorial.


page12a
Edit

Click and drag the cursor from position 1 to 2 (in the figure below) to reselect the drawing elements.

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