Change Color

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Change color all object of drawing.





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Continue Polyline

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  Here is a simple routine that lets you pick up where you left off. You simply pick the end of an existing polyline, and this routine will let you pick more points (add more vertices) to that polyline. This routine continues even the properties as well… Here’s how: CPOLY <enter> to start Select a part of a polyline that is near its endpoint. You may need to specify what endpoint you want to continue from Click to place more vertices Credits : AutoCAD Tips Website
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Automatic Level Calculating Attribute

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Slope is a measure of change in elevation. It is a crucial parameter in several well-known predictive models used for environmental management. One way to express slope is as a percentage. To calculate percent slope, divide the difference between the elevations of two points by the distance between them, then multiply the quotient by 100. The difference in elevation between points is called the rise. The distance between the points is called the run. Thus, percent slope equals (rise / run) x 100. Using this attribute you can easily get the second level as per given slope (%). Instructions ============  Simply enter the first level, required slope in percentage (%) in the attribute and adjust the poly line for the length. Regenerate your drawing 2-3 times it will automatically calculate the second level for you.
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