Drawing In Isometric Mode - Autodesk 235B1-05A761-1301 - AutoCAD MEP 2010 User Manual

When you draw in orthographic mode, you add schematic lines and symbols in the world coordinate system
(WCS). In the WCS, the X axis is horizontal, the Y axis is vertical, and the Z axis is perpendicular to the XY
plane.
Orthographic drawing parameters
As you add or move lines or symbols, you can use several tools to restrict cursor movement:
Use the
Use the AutoCAD
alignment depends on the current snap angle, or grid and snap settings.
Use the grid to help you to align symbols and visualize the distances between them.
Use snaps for specifying precise points for placement of symbols or lines.
You can turn these tools on or off at any time during drawing and editing.
For more information, see

Drawing in Isometric Mode

You can draw a schematic diagram in isometric mode. Isometric mode simulates a 3-dimensional (3D) plan
view, where lines are drafted on rotated isoplanes and symbols appear tilted along the isometric axes. This
provides the illusion of a 3D view in a 2D model.
Isometric drawings simulate a 3D object from a particular viewpoint by aligning along 3 major axes. The
Isoplane option on the Properties palette restricts cursor movement to appropriate rotated angles along
isometric planes. You can work on one of 3 isometric planes, each with an associated pair of axes:
Left. Aligns symbols and lines along 90-degree and 150-degree axes.
Top. Aligns symbols and lines along 30-degree and 150-degree axes.
Right. Aligns symbols and lines along 30-degree and 90-degree axes.
Viewing isometric planes
520 | Chapter 11 Drawing Schematic Diagrams
compass to guide the placement of lines or symbols.
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Ortho mode to restrict the cursor to the horizontal or vertical axes. The orthogonal
Creating a Schematic Diagram on page 525.