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I have this layers, I know how to make a new layer from Autolisp, but I don't know how to make a group filter from the layers made. Also as you can see in the image, the layers have strings("CONTOUR_EL") attached to elevations, so i cannot just use If statements to it. Can someone help me group filter all the layers please? here is the ranges: 1170 - 1238 = "1150 LEVEL" 1110 - 1168 = "1100 LEVEL" 1070 - 1108 = "1070 LEVEL" 1020 - 1068 = "1000 LEVEL" 962 - 1018 = "950 LEVEL" 910 - 960 = "900 LEVEL" 870 - 908 = "850 LEVEL" 810 - 868 = "800 LEVEL" 770 - 808 = "750 LEVEL" 710 - 778 = "700 LEVEL" 670 - 708 = "670 LEVEL" help? or at least show me how to make it, and ill try to make one myself

in my loop generator app (LG) I use : (if (and LG-ExcelApp LG-ExcelWorkBook LG-ExcelSheet) (progn (setq CurRegion (vlax-get-property LG-ExcelSheet 'UsedRange)) (setq LG-XlsMaxRow (vlax-get-property (vlax-get-property CurRegion "Rows") "Count")) (setq LG-XlsMaxCol (1+ (vlax-get-property (vlax-get-property CurRegion "Columns") "Count")))))) just subst. your names for the excel-app / workbook / sheetname

Well, the assignment was due at 9am this morning. Nothing like waiting until the last minute to ask for help. I wonder if he got it done?

The above image leaves much to be desired when it comes to the dimensioning. This is how I would begin to lay out the front view.

You are really asking a lot for someone who just joined the forum. While it is totally proper to request assistance it is not a good idea to ask someone here to create the drawing for you just so you can turn around and hand it in as your own work to your instructor. I certainly would not do it. You are the student. It's your assignment. Many of us have been in the same position and we found the time to do our own drawings. The responsibility remains with you. How else are you going to learn? What have you created so far? Post an image or attach a copy of your drawing. I would start with creating all the parts of the drawing that are not shaded including any necessary reference (i.e. - centerlines). The same reference lines can be offset to locate other parts of the geometry.