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Questions tagged [measurement]

Questions pertaining to measurements in Blender. Real measurements as well as Blender units are acceptable.

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1answer
24 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 ...
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0answers
31 views

How can I draw a line between 2 specific points?

I want to find the center axis of the inner irregular cylinder below. I want to determine 2 points and draw a line between them so I can find the central axis. Is there a way to do this?
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2answers
40 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 ...
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0answers
16 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 ...
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1answer
40 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 ...
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0answers
20 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 ...
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1answer
19 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 ...
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0answers
29 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 ...
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1answer
41 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.
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0answers
143 views

2.8 how to keep measure lines?

Is there a way that let the each point of the measure line automatically snap to the assigned vertex before as you size up and down the mesh? Also I want to know how not to click the measure point ...
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0answers
31 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 ...
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1answer
319 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.
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1answer
116 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 ...
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1answer
22 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 ...
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3answers
68 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 ...
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0answers
51 views

How can I get the sum of a measurement in Blender? [duplicate]

I know in the N panel you can turn on edge length. But what about seeing the measurement "around" an object. like the sum.
1
vote
1answer
179 views

set distance between verticies

I'm on blender v2.79 and could not figure out how to set distances between vertices(or anything) in blender. I'd like the distance between the two selected point in this image to be 77cm or in my ...
2
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1answer
261 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
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2answers
142 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 ...
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0answers
65 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 ...
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1answer
198 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 ...
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0answers
25 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
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0answers
100 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. ...
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2answers
583 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 ...
2
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1answer
360 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 ...
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0answers
279 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 ...
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0answers
411 views

How to set the distance between objects accurately?

I want to have the same distance between all objects.
2
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1answer
424 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
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1answer
222 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.
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0answers
116 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 = ...
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1answer
165 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 ...
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0answers
153 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 ...
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0answers
60 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?
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2answers
723 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
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1answer
201 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 ...
4
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1answer
2k 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
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1answer
228 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 ...
15
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1answer
8k 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?
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2answers
1k 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 ...
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vote
1answer
1k 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
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1answer
449 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 ...
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0answers
53 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
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3answers
654 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
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1answer
182 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? ...
3
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2answers
572 views

Make changes to the Radius of the default Circle?

How can I create a circle with a certain diameter/radius? I know there's a way, but I don't know how to.
3
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0answers
2k views

Showing the dimensions of an object when rendering?

In Sketchup, we can display the dimension of a specified edge as below. Is there a way to do display that in the final render in blender?
0
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2answers
182 views

how to create metric map and metric buildings/vehicles/etc in blender?

I'm going to create a metric map with scale 1000 x 1000 meters then create buildings and roads and vehicles with the same size as real world size. a project for both animation and export to unity 3D. ...
7
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1answer
781 views

Picking two points on the 3d model surface to measure distances

I'm a blender n00b and this may be a wrong tool for the job, but I've found some great features in Blender (like the caliper add on), so I'm pretty sure there's a way to easily (or at least bit easier)...
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1answer
843 views

Measuing an irregular volume from an .stl mesh

I'm quite new to blender so please, any help you can give is much appreciated. I am trying to measure the volume of an irregular object (e.g. a mold of clay) on either a concave or convex surface (...
3
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3answers
7k views

Can the scale tool show me the real size of the object instead of a 1 - 0 scale?

when I resize I want to see the real width\length\dept of the object instead of the x=1 y=1 z=1. Is there a way to do this?