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Scaling an imported image
ProApe
Member Posts: 142 ✭✭
Hi,
I imported an image and found out that it is extremely easy to scale it to the correct dimension by placing a line over a line of known length in the image and entering the desired length and the image is scaled. I was very surprised at first.
Then I wanted to scale another image, but it doesn't work there: if a known line measures 26mm and I place a line of 26mm on it, the image is not scaled, but the line is drawn at 26mm and is either too short or too long and the dimensions of the image stay untouched.
What determines whether this method works or not?
Kind regards
ProApe
Comments
This is a known pro tip not sure who gets the credit. but you can't have any other dimensions or contraints in the sketch. create a seperate sketch for each image you want to use.
I have imported it not only in a separate sketch but also in another Part Studio.
Can you post a link to the doc and more eyes can take a look to see if they see and issue.
I have solved the matter differently, but give up this drawing anyway because it contains gears that are too complicated for me, but never mind, it's about the method: a line is placed on a line of known length in the picture, the two are placed in relation to each other and scaled by the result.
e.g. a fictitious example: on the image there is a line of 56mm; if I place a line on it, it measures only 34mm; I divide 56 by 34 and get the factor (1.64705) by which the image must be enlarged, which I do with the transform tool.
I was able to scale the image 4 (Part Studio 2) by putting a line on an existing and giving it the desired length, but that doesn't work with the image 8 (Part Studio 3).
These are parts of a wall clock, but I don't want to construct one; it's all about training in Onshape.
https://cad.onshape.com/documents/38ae6f7b11fd232d93cd7d1d/w/d800dbcc392a900cd2c8cdc1/e/67e151bcfa480dca932accfc?renderMode=0&uiState=687eb9e6096a2e5b18851390
I prefer to use the "image" FeatureScript as it provides better control.
https://cad.onshape.com/documents/f7a45d78c374497d37c1d2cb/v/e55cc4b62eaac7ef75039ab2/e/557019cd8b843cc475681faf?jumpToIndex=1782
I find it tends to be messy to try and add sketch elements in the same sketch as the picture so the fact the image end up in it's own feature isn't a drawback for me.