Questions tagged [measurement]
Questions pertaining to measurements in Blender. Real measurements as well as Blender units are acceptable.
131
questions
1
vote
0answers
22 views
Precise scaling in Edit mode impossible?
[
[
I turned on the edge length indicator in Edit mode, but apparently it gives false (rounded) values, since the vertices don't align.
In this example I tired joining 3 tetrahedrons around a 345 ...
0
votes
0answers
56 views
How to measure total size of selected objects?
In Blender I have never, except when joining multiple objects together been able to see the total size of objects in the scene.
Is there any way to achieve this, without joining multiple objects?
0
votes
1answer
2k views
remove measurement
I love the new measure tool, but seems I have a measurement that just will not delete.
When I delete it (either with the delete button or with X) it seems to vanish only to reappear shortly later ...
1
vote
0answers
131 views
Does Blender 2.8 use floating point?
I've heard a lot of people say it does, but 'where' does it say that it uses that. If it does, is there a way to switch it to something a little more precise (because occasionally floating point may ...
0
votes
1answer
62 views
Is there a way to enter a precise amount of length or width for the measuring tool in Blender?
I'm specifically talking about the Measure tool with the protractor icon. I wanted to resize my mesh to a specific length, but I'm having to tediously move the anchor points on it which is time ...
0
votes
0answers
291 views
Why don't the edge lengths update after I've scaled my object?
In Blender you can turn on edge lengths by going into edit mode and then turning it on in the overlays menu. However, whenever I scale up the object,the lengths stay the exact same which should be ...
0
votes
0answers
50 views
Accuracy of Edge length measurements [duplicate]
I've been trying to modell with some accuracy using Blender 2.8 using the Edge Length under Viewport Overlays > Measurements. However I've noticed that the ...
1
vote
0answers
56 views
Accessing MeasureIt data with a script
I’d like to dimension and measure corner angles of objects with MeasureIt and then access them with a script so I can output a list of the objects with their specs. At this point I'd just like to know ...
0
votes
1answer
99 views
How do I fit label precisely around bottle, specifically the circumference?
I plan on wrapping a label around this bottle but the label gets distorted everytime, so I've concluded I need measurements to match. I've thought about making edge loops to get a specific height when ...
0
votes
1answer
93 views
What is the correct measurement systems for animation?
In animation, which scale or measure system should I use? For example, If I model an entire room and plan on having a character moving about in it, should all the assets and character be done to real ...
0
votes
2answers
160 views
How can I determine the coordinations of the deepest point of a pit located on a 3D object?
I am trying to find the deepest point of a rough pit located on a rough 3d object. The pit is full of irregular vertices.
https://drive.google.com/open?id=1muCjhRDHhwo3AnY194BAvkaCpPIdyWhx
I cannot ...
1
vote
0answers
31 views
How to figure “Array” modifier offset when using “Subdivision” modifier as well?
First of all, I’ve seen how using the Subdivision Surface modifier on a cylinder will shrink the radius. But, the Transform pane shows the actual, new dimensions, so it’s easy to fix: type the ...
0
votes
1answer
151 views
How to draw a cylinder with an irregular cross section, which varies along the cylinder length?
I want to draw a cylinder which has a different and irregular cross section along the cylinder length, with precise measurements
?
At each angle the cylinder has a specific radius, therefore the ...
1
vote
0answers
25 views
Degrees (°) not showing up as expected?
I'm trying to measure a corner to see if it measures larger than 45° for 3D printing. I use the measure tool to recreate the corner of my object but the degrees seem off. A 90° angle is displayed as a ...
0
votes
1answer
77 views
Measureit Measurements Inconsistent After Export
I’ve been using the measureit tool to get the proper dimensions for a 3D printing project I’m working on. The only problem is that after exporting the file and then uploading the STL into my printing ...
0
votes
0answers
42 views
rule/protactor: how to measure distances to pointer?
my first post, be nice please.
I'm trying to measure exact distance from a vertex to center.
It would be better if I would learn how to measure from vertices to pointer,
so I would be able to do a ...
0
votes
1answer
76 views
How do I get the inch measurement around this cup?
In the scene panel I've selected Inches as my units but I get this 463thou symbol instead. Anyone who knows what I'm overlooking, let me know. Asking for a friend.
1
vote
0answers
41 views
How to determine angle to place people during a dolly in green screen if filmed separately?
I have a blender model of a large room.
In the scene, I have several people seated at consoles spread x feet apart (in reality, they are in a green screen studio).
I am using a physical chair for the ...
0
votes
1answer
2k views
How to calculate the distance between two selected vertices?
Now I have got a new problem. I want to measure the distance between 2 selected vertices but I do not know how to do that in Blender. Can you help me? Thanks a lot.
0
votes
1answer
205 views
Adjusting Scene Scale with BLAM to real world estimation measurement
I am remodelling a scene from -presumably- a photo. Using BLAM addon.
I would like to know how to adjust the 3D model in the scene.
To the real world estimated measurement.
As can be seen in the ...
1
vote
1answer
23 views
Using some kind of unit of measurement for scale?
So I'm not very experienced in making scenes. So for my first attempt at doing so I want to make a scale model of my apartment. I'd like to make it last night and still possible, but I don't know how ...
1
vote
3answers
124 views
Area of bottom polygons using obj.to_mesh post modifier but without applying it
First of all, I'm quite new to python so please bear with me if I'm asking dumb questions. I've seen similar questions answered but still can't get where I want.
Say we have an active object in the ...
1
vote
1answer
2k views
How to set a specific distance between two vertices?
I'm on Blender 2.79 and could not figure out how to set distances between vertices(or anything) in Blender. I'd like the distance between the two selected points in this image to be 77cm or in my ....
3
votes
2answers
2k views
Measurement of the “Straightened” length of a path
So, I'm having a bit of trouble with scaling. An object I'm making involves the use of a path to form a curved surface, but I need the resulting curve to be within about 1% of an exact length.
So, if ...
3
votes
2answers
547 views
Getting 0 Volume for object
I am trying to calculate the volume of a 3D scanned object using the 3D Print add on.
The object was captured with a structure sensor/ipad and then imported to Blender (version 2.79). The scanned ...
1
vote
0answers
77 views
Virtual prototyping with Blender?
I'm currently designing furniture in Blender and was wondering if anyone has ever used Blender for virtual testing? Specifically, if Blender has tools to ensure that parts will fit, structural ...
0
votes
1answer
917 views
How to scale the scene relative to an objects metric values?
I have created an office desk in Cycles and am very pleased with the result and how it appears to the eye.
It is only now that I have changed the scale to the metric system and want to re-scale the ...
0
votes
0answers
31 views
Straighten vertices along a line without changing line lengths
I need to use the circumference of a shape to calculate its height with that circumference as my physical reference. I have a cross section of the shape isolated, but it's a lot vertices in a pretty ...
2
votes
0answers
252 views
Is there a way to do absolute measurements in edit mode?
What I'm trying to accomplish is something as simple as grabbing a line or two verts (maybe more complex objects if possible) within edit mode and then setting their scale to an absolute measurement.
...
1
vote
2answers
1k views
How to compute the centroid of a mesh with triangular faces without using Blender's built-in functions?
I do not want to use Blender's built-in functions for computing centroids as explained here as it seems that they do not give me the kind of centroid I expect to get. I want to compute a new centroid ...
3
votes
1answer
672 views
Blender for Engineering: Numbering and naming objects in blender
I am working on technical drawings with Blender using MeasureIt. I am following for making blueprints of specifical parts this youtube tutorial, and it works great.
But when I am producing "big ...
0
votes
0answers
396 views
MeasureIt is this a bug?
i try to measure my drawing with the "MeasureIt" Addon.
The measurement should look like "A".
The result is "B".
Ok i think, maybe that's because the Verts belong to two different faces.
So i copy the ...
0
votes
0answers
651 views
How to set the distance between objects accurately?
I want to have the same distance between all objects.
2
votes
1answer
789 views
Cycles: Is there a way to find the angle between incidence and reflection rays?
Is there any point, be it through cycles nodes, OSL, or even somewhere in the code of Cycles itself, where the angle is known between the camera/incidence ray and the reflection ray for a given bounce?...
3
votes
1answer
526 views
How can i measure projected area of any object in blender ? (Ex. shadow from top view)
I'd like to measure the area of the projected front, top or side view of an object.
please give me some suggestion
Thank you.
0
votes
0answers
303 views
How to control/change the unit of measurement precision of the ruler?
How to change the ruler's unit of measurement precision to show only 10ths, 100ths, 1000ths, etc. appropriate to the scene (e.g. architectural vs precision machining).
Example: x to y measurement = ...
-1
votes
1answer
276 views
Precise measurements not adding up to scale
I'm using blueprint data in conjunction with imperial units to, hopefully, create 3D models of machine parts, which I will later attempt to fit together.
Beginning with an eccentric shaft, I input ...
1
vote
0answers
277 views
Convert Curve (SVG) to Blender exact imperial units
As a test, I've created a 2D box in Inkscape with the dimensions 1' by 1' (Inkscape shows that 1' is 1080.000px).
I import the SVG into Blender, and when observing the dimensions of the curve ...
2
votes
0answers
76 views
How many density-independent pixels is one unit of measurement in Blender 2.7x? [closed]
I would like to know how many density-independent pixels it takes to make on blender unit. Please?
0
votes
2answers
1k views
What are the Measurement Units
i was doing a project of making drone parts which i want to 3D print but i don't know how the measurements in blender are going to be the same as the ones in real life so can anyone help me
0
votes
1answer
242 views
Scale and change certain measurements of 3D image that was imported as .svg file
I have converted a 2D image of an animal into a 3D image in Blender (as an .svg file). I was wondering if I can give the image proper measurements based on a dataset I have (I've attached an image ...
5
votes
1answer
4k views
Surface Area and Volume Measurements
I am fairly new to Blender and I'm hoping to find a way to easily calculate surface area and volume of irregular objects in Blender. I was looking into the Measureit addon, however it seems that I ...
3
votes
1answer
270 views
Ruler disagrees with vertices
I select a point in edit mode, and it gives me some reasonable xyz Vertex values in the "Transform" area (for example 955, -455, 100).
I select another point and I also get reasonable values (for ...
22
votes
2answers
17k views
Is it possible to display volume of a mesh object?
How can I display volume of any mesh object?
I can display length of an edge, the area of the face, but nothing for volume. Is it possible?
1
vote
2answers
3k views
Can't Keep Loop Cut & Slide Where I Want With Measurements
Whenever I'm adding loop cuts to my model, I drag the cut to the edge of the model and type in a value (such as 0.5 meters) and it goes back to the center and works from there..?
I'm pretty sure I'm ...
1
vote
1answer
2k views
How do I measure the distance between two UV vertices?
I am using Blender version 2.77a. I am attempting to make a paper model of a mesh that has been UV mapped, but not to scale. I need to:
Measure the distance between any two vertices on a UV map
Make ...
3
votes
1answer
716 views
How can I force input to be interpreted as millimetres instead of metres?
In Sketchup for example you can chose default unit. If you chose cm, you type in 17 and the line will be 17cm. Or you can choose to type in 1.7 and the line will be 1.7cm. Or you can change to metres ...
1
vote
0answers
58 views
Navigate/Measure real objects in real space - possibly with Blender's Motion Tracking
Can Blender be used for solving such a kind of task?
Navigate a (real) small boat to the four corners of a (virtual) rectangle on a (real) water plane. The rectangle is about 300 meters long and ...
2
votes
3answers
1k views
Blender Python convert units to imperial
I'm writing a script that needs to make geometry using imperial units. The scene is set to imperial however this has no effect on Pythons end of things. I need to know the value that equates to an ...
0
votes
1answer
234 views
Display length of object to render, dynamically
I have an object that is a line that fallows the animation path of a bone. Is there a way to display the length of the arm in text (that can be rendered) that changes the numbers as the arm stretches?
...
