【 Weak current College 】 AutoCAD troubleshooting and tips (9)----Power By 【 China power house network 】

30.AUTOCAD in a few special system variables or command
CAD version a jump in version has been updated to 2004, normally in use some variables or command can be familiar with, or as we address the many unexpected trouble.
Here's a few to details.
1, MBUTTONPAN system variables
Control pointing device third button or pulley action response.
0 support menu (.mnu) file defines the action
When you hold down and drag the button or pulleys, in support of the Pan
The default action for the translation.
IntelliMouse or other wheel mouse
IntelliMouse is a two-button mouse, the two buttons have a pulley. Left and right buttons, like the standard mouse. Pulley can rotate or press. Without the use of AutoCAD command and direct the wheel you can zoom and pan.
By default, the zoom is set to 10% in each rotation of the wheel will be 10% of the incremental changes the zoom level. ZOOMFACTOR system variable to control the wheel rotation (either forward or backward) incremental changes. The higher the value, the greater the incremental changes.
2, MINSERT command
In a rectangular array to insert a block of multiple references. Use the Insert block MINSERT command cannot be decomposed.
Note: the insertion process, cannot use the INSERT command in front of the block name with an asterisk to explode block objects.
In the specify the location of the insertion point at the insertion point before the option is out-of-the-block scale and rotation angle. For 1 and 0 scaling factor and the rotation angle to drag block, a preset can be very useful.
Other related commands: INSERT, ADCENTER, REFEDIT.
3, XPLODE command:
Will synthetic objects into its component objects.
Synthetic objects by multiple (more than one) AutoCAD objects. For example, the block is a synthesis of the object. You can also explode more synthetic objects and modify the color of each object, layer, and line styles, or global modify the entire selection set. You can specify color, layer line width and line styles, or from a broken objects inherit these properties.
You can use absolute value equal to the scale break blocks. Absolute value equal to that if you set the value before the minus sign (-) to delete, then the scale values are equal. For example, you can use the values 1,-1, 1 x, Y, Z scale factor decomposition block, including the mirrored block.
This command has a virus in the CAD.
Other related commands: EXPLODE.
4, DBLCLKEDIT command
Control the double-click action
When you double-click the object DBLCLICKEDIT control is causing the dialog box displays. If you double-click the edit mode is turned on, double-click the object type to display a dialog box.
Double-click most objects, you will be prompted with a "Properties" window. Double-click certain types of objects, it displays a dedicated editor, the editor of the more powerful, easier and more common. Double-click the Special Editor is displayed when the objects are:
Properties: displays "Edit properties" dialog box defined (DDEDIT).
Block properties: display the "enhanced property editor" (EATTEDIT)
Block: display the "Edit" dialog box, references (REFEDIT).
Pattern fills: display the "Edit" dialog pattern fills (HATCHEDIT).
Lead text: displays "multiline text editor" dialog (DDEDIT).
Multiple line: show "multi-line editing tool" dialog (MLEDIT).
Multiple lines of text: displays the "multiple lines of text editor" dialog (DDEDIT).
Text: displays "Edit type" dialog box (DDEDIT).
External references: display the "Edit" dialog box, references (REFEDIT).
5, CMDDIA system variables
Controls whether to PLOT and external database command to open the dialog box.
This variable is only valid in the following version CAD2000.
In addition, more than version if CAD2000 options-system dialog does not display the Startup dialog box, the new command dialog box will be effective.


33. clever EXCEL sketch curves inAutoCAD
In engineering calculations, often using AutoCAD to draw a curve, and the curve if is composed of multiple coordinate point connection,
Enter up to trouble, and error-prone. If you use EXCEL application to save data and CAD skilfully combine
You can easily draw the curve. Specific methods for the
First, enter the coordinates in Excel. We will put the x-coordinate value of A column, the y-coordinate values into the column b
Then the columns a and b into column c, due to the two-dimensional coordinates for the point in AutoCAD is separated by commas,
So we entered in cell C2: A2 "=" & & "," B2, C2 in a pair of coordinates value.
We use the mouse to drag the formula of the C2 for replication, you can get a set of coordinates.
Second, choose the desired lines of point coordinate values, such as the above example C column data, copy it to Clipboard
That is, press the copy button in Excel to complete this work.
Finally, open the AutoCAD, at the corner you can see the command line (bottom left),
In the "command", type "spline" (draw a curve command), the prompt: "Object/:"
Then in this position please click the right mouse button, a pop-up menu, choose in the menu "Paste" command, so that the coordinate values in Excel is delivered to the AutoCAD and automatically connected into a curve, click the right mouse button, to continue to draw lines, curves and painted.
Through the above methods, you can easily draw various curves or polyline and Excel easily modify and save the coordinate values.
Some of the largest topographic maps possible X, Y coordinates, in fill-pattern, the pattern may appear confusing,
First you want to fill objects near the straight line is drawn (horizontal), selection of UCS in OB (object corresponding to the coordinate system), and then select the line,
Transformation of coordinates and then fill pattern will not appear confusing.

34. from R14 ext to CAD2004 least used to set theleft, before-hand keyboard-mouse operation mode is a bit inconvenient.
Finally found the middle mouse button can be set to return, subject to the following three steps:
1, through the Windows console within 「introduction mouse 」 option, the middle mouse button functionality is set back to 「introduction of key 」.
2, AutoCAD menu (acad.mnu) ** * AUX1 district of the second row (on behalf of the third mouse button) into a semicolon (;), and reload the menu.
3, the system variable MBUTTONPAN set to 0.