AutoCad :: Drawing A Line Central To Two Parallel Lines?
Dec 14, 2011
if I have two lines which run roughly paralel, but sometimes vary in the distance between them, is there a quick method of having CAD draw a line which is central to the two?
Basically, like an offset, but it would need to offset the line at a distance that is central to the two lines, as and where it varies. IE, you couldnt choose 'offset' and then choose 'mid between two points' because the distance between the lines varies at points..
I'm trying to draw a line that is parallel to the one I've already drawn. It works fine (Osnap on) when I draw a whole new line and then draw a parallel line. But when I try to add a parallel extension to an old line, it doesn't work. The old line is located in another layer, but I tried to copy it to the same layer and it still doesn't work.
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!
Any way to build or download a linetype that can display as a thick dashed line surrounded by 2 parallel lines on either side of it?
We use them to denote underground stormwater pipes in our survey models.
Currently I need to manually set each line to a polyline, give it a global width, and then draw a DLINE of the same width from endpoint to endpoint. The down side is that not only is it laborious, I also have to set the Z values to zero, so we lose the elevation feature of the pipe in the model.
Ideally it would need to have enough functionality to alter the spacing of the dashes, and the width of the line.
I am new to AutoCAD and have been sent a 3D architectural model. I need to find the dimensions of some beams. The measure tool seems only to measure from point to point, and I need to measure from one side (or edge) of the beam to the other. The beams are not along the axes and the ends are not at right angles so there are no points that correspond to the height and width.
In Sketchup, I can easily measure from one line to any parallel line. How can I do this in AutoCAD?
Drawing Parrallel lines from one elipse to another?
I am drawing pipe and beams.
I use a variety of methods. Right now I just SNAP to the elipse, draw the lines at the angles and then hit the other elipse. Sometimes though the lines jump all around the elipse.
The lines of hatch are together like a block,but it is not block,what is this kind of format?And is it possible to convert several parallel lines into 'hatch' ?
What I have is a shape files that contains the road centreline of a city I am working on. And that shape files also have a data of its road name etc.
I know how to do it as FDO (using map connect). But what I require is an autocad text entity.
I can save the map as a drawing. But what I only want is just a number of road names and they are not adjacent or near to each other so map filtering is not recommended.
So what I did, I add the shape files using map import command and added the road name data. And then, I used the command Annotation and do the "define annotation" and "insert annotation". From here, I am doing fine. I created a text/block annotation that will extract the road name on the imported centreline on the line I just selected.
Now, my problem is, all the text are in just one direction (in my case they are all horizontal). I tried playing the "rotation expression" but still without luck.
how or what "rotation expression" should I use to make the text parallel/along the centreline.
I have a block that has a portion that needs to rotate up to 90 degrees. The problem is that it has parallel lines that create a bowtie when rotating. I've tried everything with constraints to get this block to work, but I just can't keep it from creating a bowtie when rotating.
How to get the “text” or “block” parallel to a particular line?there is more than one way to alight the text with a particular line but wondering if there might be more powerful tools to do so.
“Rotate” and “Align” are possible commands to align the text with particular line. Parallel constrain is another option to do so but will make the drawing “busy” with additional parameter.
Equally, what if I need to make a block parallel to a particular line? In this case, the “parallel constrain” doesn’t work! Just I may take the advantage of “rotate” and “align”..What I wanted to know if there is a more brilliant way to get the“text” or “block” PARALLEL to a particular line with a smart tool.
I have to make a technical drawing using a handmade drawing. When I use technical drawing option, I get a technical drawing with double lines, bacause the lines of my original drawings are a little thick. How can I get a tecnical drawing with one line and not double lines?
I am having a problem with parallel horizontal lines in my hi-res jpg files. They show up on screen much like an old-fashioned TV screen and in prints as black horizontal lines. I am working from big files (12,800 KB) and decent dimensions 1728 x 2600 at 300dpi, but still these lines persist. What am I doing wrong?
When you create shapes that fits together, there appeares a thin line that also shows when you make a jpeg from it. I'm a vector contributor at iStock and making a preview jpg with all those white lines looks really ugly (see attachment).
Here is a simple solution. Copy your shapes on top of each other and the lines are gone. This way your work stays 100% vector. For work that hasn't to be 100% vector, you could make a bitmap copy and place it under your vector image.
The best / easiest way to subdivide a panel of a ceiling into parallel lines (each panel having these lines going in different directions)? See attached sketch.
How do you draw parallel lines with a specific distance between them? I was gonna use this function for futuristic artwork. Do you have to use the grid for this or is there another way?
I set a viewport to a perspective mode. I do this by starting 3DOrbit then right clicking and choosing perspective. Save, close, open and all perspecitve views are set to parallel projection.
I need to dimension between the face of a wall and non parallel wall opposite it. The non parallel wall turns a 90 degree corner, and it is at this corner that I want to measure perpendicular to my first wall.
1. Is there a way to dimension between non-parallel walls? When you place the dimension you click on the wall at the location you want to dimension, so I don't see why Revit can't place the dimension at that point. That dimension would be particular to that one point along the non-parallel wall. 2. I got around this by placing a reference plane and dimensioning to that, but I'd rather not do this because then if I hide the reference plane, my dimension disappears.
Is there another work around or am I missing a tool I don't know about?
Looking for the process to straighten the lines on an equirectangular panorama I have made with a series of images with a 15mm fisheye lens. I would like to create a true parallel with these files if possible.
I did a parallel line using White Arror Select> Copy> Object> Path > offset. I got the parallel lines but the ends are not opened. It was Mitre selected in the popup box. Here is the image:
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.
