Autocad Contour Lisp
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Terrain, Contour Labels, and either Interior or Group Interior. Set the desired layer for the contour elevations current, and you can also play with the label settings. Then just point and click to get the labels. Here is a dynamic one modified from an Alan J Thompson routine. Your contour must be on layer 'Major Contour' and 'Minor Contour' for it to work.
Shallowhead said the following On 3/1/2007 6:50 AM: > Greetings, > I'm looking for a lisp or something to help draw automatic contours based on 3d spot elevations that I have in a drawing. I need this to be done in AutoCAD 2006 or 07. > Willing to pay a fair price. > Best regards, > SH Take a look at: -- R.K. McSwain http://rkmcswain.blogspot.com. You may wish you had payed a fair price but I do have a program I created a few years back that I use.
The commands are simple SCON to set the contour height CONTOUR to use it All you have to do is select a node then a dtext item on one side then do the same for the other side. Then repeat until your fingers are soar. It places points which you can join later using a spline. If you want to modify it to prompt an elevation send me an email (I have used it that way in the past) and I'll let you know how.
Contour Elevation Label Contour Elevation Label This command can be used to simultaneously create elevation labels on a group of contour polylines at elevation. First the command starts with a dialog with the label options. Then to place the labels, pick two points crossing the contour polylines at the desired label location. The program will find all the contour polylines that intersect the picked line (defined by the two picked points) and will place labels at the intersection point of each contour. A second crossing line can be initiated immediately, so multiple areas can be quickly labeled while remaining in the command.
Alternatively, you can type P for Polyline at the Command prompt and select a polyline. Then the program finds all the intersections between the selected polyline and the contours and places labels at these intersections. The actual 'z' elevation of the contour line determines the label value.
Label Layer specifies layer name for the contour labels that will be created. Label Style specifies the text style to be used for labels.
Horizontal Scale is used in conjunction with the Text Size Scaler to determine unit height of the contour labels. Text Size Scaler is a scaler that will be multiplied by the horizontal scale to set the actual text height of the labels in AutoCAD units. Integers controls how many digits to label to the left of the decimal. For example, if all contours are in the 5000's, then setting for three digits would label the 5280 contour as 280. Decimals sets the decimal precision for the labels to be created. Label Position determines the label position in relation to the contour polyline.
• On Contour centers the label on the contour line. • Above Contour places the label above the contour line. If this option is used, the options for Break Contours at Label and Draw Broken Segments become inactive. Ignore Zero Elevation Polylines enables the routine to filter out all entities with an elevation of zero.
Hide Drawing Under Labels activates a text wipeout feature that will create the appearance of trimmed segments at the contour label, even though the contour line is still fully intact. This feature provides the user with the best of both worlds; you have clean looking contour labels, yet the contour lines themselves remain contiguous.
This feature will also hide other entities that are in the immediate vicinity of the contour label. Align Facing Uphill makes the label parallel to the contour and flips the label so that it reads facing uphill. Otherwise, the labels are made to face up relative to the current screen view. When this option is on, the program prompts for a triangulation surface file that should match the surface the contours represent. Use Commas adds a comma into the labels for the thousands place such as '5,000' instead of '5000'. When Align Text with Contour is checked, contour elevation labels will be rotated to align with their respective contour lines. When Break Contours at Label is checked, the contour lines will be broken and trimmed at the label location for label visibility.