AutoCad :: How To Read Angle Of Line And Insert Block To That Angle
Feb 11, 2011
Let's say I am inserting a square block into a dwg and want to get it parallel to an existing angled line. Do I have to read the angle of the line and insert the block to that angle or is there a quicker way?
Is there a quick way to rotate an object to match an angle without knowing what the angle is? I am using AutoCAD 2011 now. I was using 2007 and I had an add on command the would rotate an object using a base point and picking the two lines that make up the angle, and it would match the angle you wanted. I can not get that command to load in 2011.
I have a property line that is N 36d19'52" E but needs to be N 12d52'18" E. The obvious and calculated rotation angle would be 23d27'34" but when I rotate the line by the calculated angle it doesn't rotate to the right angle. It's off by 0d11'10"!? When I draw a line by bearing at N12d52'18" E and inquiry the angle between the property line and the drawn line the angle difference is in fact 23d27'34".
how to convert "real world" angles of elliptical arcs into those shown in a dxf file?
Say that I have drawn an elliptical arc with its start angle on 210 degrees and an end angle of 324 degrees. The values in a DXF file, for an elliptical arc, have something to do with the contant "PI" (3.14159). I know that a full circle is 2*Pi but how to do this with elliptical arcs!!
I have been practicing using a older book(copyright 1990) and it has some decent exercises in it. I was able to do this one but it seems I can"t find the proper way to do this..First drawing a line a certain distance..ortho on,click the first point anywhere,move curser to the left and click again. that gives me a line at 180 degrees at what ever length..Line command again starting at the second point of the first line..after clicking that point,I type in @2.38<150 that gives me a line2.38 long at 150 degrees..now how do i make a third line relative to the second line so that the angle is 75 degrees and a certain length..the picture shows what I am trying to draw..using the polar cordinates you get an angle based off the UCS( which is set at world) when you try to draw the third line ..that makes the angle between line 2 an 3 not the angle that I want..To make the drawing,I rotated the ucs -30 degrees..But there has to be a better way than that..
I have to draw a rather weird drawing with a lot of angled lines. Currently I'm using UCS to draw them but it's really tiresome.
I would draw 1 line, then type in UCS, select the X and Y axis, draw that line, escape, then hit in UCS again, rinse and repeat.
Is there a simpler way? I tried polar tracking "relative to last segment" but it still uses the x axis as the base, which is not what I want. I want the line to be the X axis.
How do i draw line at specific angle. if i have the length on the x axis and angle, when i do @.25<45 the line becomes .25 in length i need the x dim to be .25 @ 45 degrees. as shown in the picture
I'm trying to create a dynamic block for plywood. I have the stretch parameter working so that I can stretch the plywood to the needed length. I also have set a rotation parameter based on the various roof pitches that we use. The problem is I would like to be able to rotate the sheathing to a 45 degree angle and then stretch along the 45 degree angle. Once I rotate the sheathing the stretch does not follow the rotation angle. I have attached the file.
I am drawing a diagram to describe a mathematical word problem. Since it is easier to visualize with a drawing, I want to draw it using the given dimensions. But angles used in the diagram are unknown and are not needed for the answer to be calculated, so the only way to draw this freehand is to guess at the angle resulting in the correct distances to be off.
Here is the word problem: There are two ladders, one 40 feet and the other 30 feet, each touching the base of one of two buildings and leaning against the other building. If the ladders cross 10 feet above the ground, how far apart are the buildings?
So for my drawing, being rather simple considering what AutoCAD can do, results in this:
Can AutoCAD calculate the angle needed to place a line of a given length between two parallel lines that are a distance apart less than the length of the line to place between them, having the endpoints of this line touching the parallel lines, fitting exactly?
For the word problem, the distance between the two parallel lines is what needs to be solved and the math is quite invloved, having to find the roots or solution of a quartic equation. (I have the solution figured out to be 26.03287754 feet)
What I am afraid of is that this would require to program an AutoLISP routine to create a new command that one can call from the command line. I see it using the the measure command with relative and absolute co-ordinates. This may be far from a "beginner" question. I can do this quite easily on a peice of paper: having two parallel lines drawn, take a ruler and placing the "0" mark on one line, then adjusting the angle until the desired length just reaches the opposite parallel line. I used to use this trick quite often when drafting with pencil and paper to divide a distance into a required number of even amounts, so this can't be that difficult to do with AutoCAD!
I am tying to create a Dynamic Block of a steel angle of multiple sizes and thickness. I used Dynamic Blocks before and live the idea of changing sizes on the fly with out having to delete and recreate an object.. I got as far as creating an angle of different sizes, i.e.. 4x4, 5x5, etc. and different thickness but can't get the thickness to work with the radius of the angle.
I notice that when I hit shift to create a straight line, it seems to be straight in about 1° increments.
Is there anywhere that I can specify the increment angle? Mostly, I make 90° straight lines, so I'd like to up this increment so that there is a more noticeable space in between the increments.
When I draw a line, is there a way to say, "Start at point (864,0), go exactly 270° down (actually, I can hold down the shift key for that, but I digress...) and end at the other side of the canvas at point (864, 3456)?
A script would probably work well, but I've never dipped into that.
I use Mtext quite a bit and I am trying to convince others in the office that it's a good thing (versus single line text in long paragraphs). One of their concerns in the shape of the Mtext. For instance, when you use Mtext, you type into a nice rectangle that you can change the size of. What they have to do on occassion is instead of having a nice rectangle of text, they have to make it like a triangle. So in this case, single line text can be adjusted so that the end of the sentences make an angle.
Is there a way to do this using mtext? Or is there an lsp that will work?