Explore how to use Autodesk's Civil 3D software with even more precision, learning how to add annotation, insert arrow symbols, add dimensions, and work with user coordinate systems in a Meets and Bounds drawing. The article details how to effectively implement these features and techniques to improve the accuracy and readability of your civil engineering designs.
Key Insights
- The article delves into the process of inserting arrow symbols into a Meets and Bounds drawing, using the Block Insert feature to select the 'Meet Arrow', scale it, and position it at the end of a designated segment. The arrow symbols are used to indicate the length and direction of a specific line segment.
- This piece also provides insights into using the Annotate feature to add linear dimensions, including how to avoid covering property lines with extension lines and appending additional text to dimensions. It also explains the process of creating new user coordinate systems to ensure dimensions are properly aligned with the angle of the relevant lines.
- The article further discusses how to place dimensions, draw and erase guideline lines, and switch between different coordinate systems. It also covers how to add setback lines to the property lines, working in civil units where one unit represents a foot, and ensuring the setback lines are clearly marked.
Note: These materials offer prospective students a preview of how our classes are structured. Students enrolled in this course will receive access to the full set of materials, including video lectures, project-based assignments, and instructor feedback.
Let's go back into our Meets and Bounds drawing and add some more annotation. You'll notice that when we put our text in, that this text is showing the distance and the direction for this segment. What I'd like us to do is to go and insert some arrow symbols.
So I'm going to go to Block Insert. It's already here in the file, so I'm going to choose Meet Arrow. It's a drafting symbol, so I want to give it a scale factor of 10, and I will pop it in at the end right here.
I'm going to click on the arrow, go to the grip, and rotate it. And I'm then going to move it slightly over to there. I will now mirror, M-I for mirror, this symbol from the mid of this line straight down.
So what's happening is that these arrows are telling me that the length of this line, the information here, goes from this arrow to this arrow. I'm now going to do the same thing over here, mirror this line from the end of here. Going to put it over, mirror this line from the mid of here, and you can see the symbol popping down there.
And I'm going to move it so it's out of the way of my point of beginning. So again, these arrows are indicating that this line segment that's showing the length and the distance goes from arrow to arrow. I'll mirror down here, M-I for mirror, from the end of this line over there.
Mirror this line from the mid of here. Again, I'm just making this enter to be essentially perpendicular to there. I'm going to move it a little bit, pick on the grip, rotate it so that the line segment is not quite on top of that edge of the sidewalk.
Mirror this line. I will say from the center of the donut, mirror this segment from the mid of this arc. Mirror this from the end of the line.
Mirror this from the mid of that line segment. And I'm just going to move the text up because that makes a little bit more sense positionally. We've gotten our arrows in, again, indicating that the information here goes from this segment end down here to this end over here.
The next thing we want to do is to begin adding some dimensions onto our meets and bounds drawing. You can see that we're showing the property line, the sidewalk, the curb, and the street center line. I would like to add one more bit of information, which are the property setback lines.
So I'm going to go to Home tab, and I will offset. I'm going to work in the backyard setback first, and that's five feet. Again, we need to remember that we are in civil units where one unit represents a foot.
So I will type offset by five units. I pick this guy, and I go down. I'm going to hit the space bar to repeat.
I look at the prompt. It says five feet. Again, five units representing five feet.
My right side yard setback will also be five feet. So I will accept that value, come to the left. And then I have my front yard setback of 20 feet.
So hit space bar to repeat the command, 20, Enter. And then I will pick all of these segments and offset them in by the 20 units. Control S to save.
I need to do some cleanup. So I'm going to fillet the segments. Space bar to repeat.
Pick, pick, space bar. Pick, pick, space bar. And I see that I have a little bit of a segment I need to add over here.
So I'm just going to take this segment and pull it down to the end of the line. Hit Escape. What I need to do next is to migrate this to the setback layer.
So I will select the entities, and I will migrate them to the civil setback layer. So civil property, setback, Escape, Control S to save. Have some dimensions I'd like to put in.
So I'm going to go over to my annotative dimensions layer. And I'm going to first annotate my setback over here. So I'm on the annotative layer.
I'm going to go to Annotate. I'm going to do linear dimensions. Now, if I were to draw the dimension from the end of here to the end of here and position it here, you can see a few things.
You can see that the extension lines are totally on top of the geometry. So I cannot see the fact that this is a property line, and I cannot easily see the fact that this is a setback line. You can also see that it is not appropriately aligned with the angle of these lines, because I'm using this coordinate system down here.
And again, this coordinate system is based on these lines over here. So what I need to do to do this setback is to create a new user coordinate system that is appropriately aligned with these parallel lines. But here's what I'm going to do right now.
I'm going to pan over here and do our setback annotation on this side, because I'm already with the appropriate user coordinate system. So again, if I were to do a linear dimension from the end of here to the end of that line and put it there, you can see how it's totally covering my property line and my setback line. What I'm going to do instead is I'm going to say a linear dimension.
I'm going to zoom in, and I'm going to say nearest from this segment. So I'm purposely picking on an area of the setback line that's going to be solid. And I'm going to say perpendicular to this over here, and I will place my setback dimension right there.
So again, I'm going with a UCS that's perpendicular and parallel to these entities. But instead, what I'm doing is I'm purposely saying nearest from, nearest to, so that my extension lines are not covering the property lines and the setback lines. Now, you can see that on the handout, it says 5 foot 0 inches, and below it, it is saying the word setback.
I need to get the word setback in there. So I'm going to click on the dimension, do a right button, and choose Properties. What I want to do is to append the word setback to be within the dimension text itself.
So I'm going to go into the Text Override button and click right here. I will do the left right caret, which means use the default text. I will then do a backslash capital P. So it's the backslash and the capital P. That's essentially forcing an Enter, which is saying let the text that I'm going to be putting in be on the next line.
And then I will type setback, and I will hit ENTER. So you can see what it's done is it's kept the 5 feet on the upper line, and put setback on the lower. I will click on the grip and drag the text down, and I will put my crosshairs right there.
Hit Escape, hit Escape again, Control-S to save. I'm going to close the Properties box. Now I'm going to go back to this text we had here.
Again, I need to go in and create a new UCS. So I'm going to pick on the text and delete it. I can go up to View, 3-point UCS.
I can say here's my origin at the end of here. I can say positive X goes perpendicular to here. And the y, I can just hit ENTER to accept.
Now what I'm going to do is to go back to Annotate, Linear Dimensions, nearest to here, perpendicular to here, place it right there. Again, it's saying 5 feet. I pick on it, do a right button, choose Properties, go to my text override.
Again, click to make sure I'm in the box on the right. Left right caret, backslash capital P. If it's not a capital P, it won't work. If it's a lowercase p, it won't work.
And then I will type in the word setback, Enter to lock it in, close this, hit Escape, pick on it, pick on the text grip, pick it there, Escape, Control-S to save. I'd like now to put many dimensions right in through here. So how I'm going to do it is I'm going to draw a line.
And I'm going to say from here to the center of the arc. So I now have this alignment. I'm going to do another UCS.
So I'm going to go up to View, 3-point UCS. My origin will be the intersection of here. Positive X goes to the intersection of here.
And I'm just going to hit ENTER to accept that. Now I have a UCS. You'll notice that my crosshair lines are no longer white.
Instead, the X-axis is red. The y-axis is green. You can see my UCS icon down over here.
When the crosshairs change color, X is always red. Y is always green. Z would be blue.
But this is just telling me that I am not in a planned view. So it's just a reminder that I'm not in a planned route for the UCS. So what I can do if I'd like is I can type Plan, Enter, Enter.
Now I have a bit more of a normal presentation. And I can go back to Annotation. I can do a linear dimension.
I can say from the intersection of here, I'm going to go all the way to the property line intersection of here. And I will just place it right there. And then I can continue.
So I'll do a continued dimension to the intersection of here. And I'm done. I hit Escape.
Pick on the 20 feet, right-button Properties. Again, go into the text override, left-right caret, backslash, excuse me, capital P, setback. Enter.
Close Properties. Pick on the grip. Press F3 to make sure that running OSNAP is not on.
And I will go on and put the text right there. I'm going to hit Escape. I'm going to erase out the line.
Do you notice something, though? Did you notice that when we moved the text on top of the line that this part of the dimension line disappeared? That's a function of two factors. Number one is the length of the exposed dimension line. Another reason is because we use the backslash capital P. I'm going to select the dimension, click on the grip, do a right button, and choose Reset Text Position.
What it's done is it's put the text back into its normal home position. I'm now going to hit Escape to get out of the command. I will pick on the text, do a right button, choose Properties.
And instead of doing left right caret backslash capital P, I will let it be a capital X. Left right caret backslash X. And you can see now what it's done. It has taken the text and centered it on the dimension line. So the text is on either side of the dimension line.
But it has also forced the dimension line to go between the text. I'll hit Escape, close the Properties box, zoom back. And now I want to start putting some dimensions over and through here for my distances from the property lines to the sidewalks and the curbs.
So like before, I'm going to draw a line. I'm going to say from right about here to the center of the arc. And I'm going to go to a UCS three point, view UCS three point, positive X starts at the intersection of here, positive Y here.
I just hit ENTER to accept that. And I will type in plan to go into a plan view of the current UCS. Again, look at the crosshairs.
X is red, Y is green, because that's because I'm not in a plan view. But as soon as I hit Plan, Enter, Enter, the crosshairs look normal. I'm going to do a few dimensions.
So I'm going to say a linear dimension, go to Annotate. I will do a linear dimension from the intersection here to the property line over here, place it here. It's showing that it's seven feet.
I have another string to put in linear dimensions. I'm going to zoom in. I will go here, over to here.
I'm just going to pull it down. Another linear dimension from the edge of the sidewalk to the property line. I want it to line up with the end of the six inch.
I can now go to Erase and erase out this guideline. I can zoom back. I can save the drawing.
And I think what I'm going to do next is just go into World Coordinate System. So I can go into View, World Coordinate System, type Plan, Enter, Enter, Control-S to save. And now it appears that we have our annotations appropriately completed.
But we do have one more bit of text we have to add. We need to put in the text for street center line. So I'm just going to go on and copy this text over to here, double-click on it.
It's already selected, street center line, Enter. Zoom extends, save the file. And I'm going to go back into our AS100 sheet file, reload the XRef.
We see our updated information there. Control-S to save. And we're ready to start doing some dimensioning here within our AS100 sheet.