I have a line at a constant grade. I need to create points along this line. The information given is in slope distance and these vary at times.
I've tried the point create methods and they all seem to calculate points at a horizontal distance. How do you enter the slope distance?
I know I can go back to basic Acad methods of divide, changing ucs so horizontal works etc.
Just wondering if it can be done in the create points commands?
Mat Kain
Kain Surveys
Australia
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Solved by Joe-Bouza. Go to Solution.
Solved by matkain. Go to Solution.
explore the points tool bar further; there is an interpolate option and various meand to divide a line
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Slope is defined by the ration of Horizontal distance to vertical so the hypotenuse will be slightly longer. Oh! I just re-read you thread title...
Can you explain a little more what you are trying to accomplish?
Slope distance what the heck is that? you can also measure or divide point along a line. yould have to hand cale the hypotenuse
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Slope distance is the length of the hypotenuse.
I'm a surveyor setting out a conveyor in an underground mine. The grade is 5.3:1. The bolts I need to set out are generally 4m apart, though not constant, with a few at 2.5, and 4.0. This distance is along the grade, i.e. the slope distance, not a horizontal distance.
So then you need only measure along the line, no?
Sorry didn't mean to come off like I knew more about trigonometry than you.
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Joe,
I just tested it myself. Create Points by Measure Object works on a regular flat line, but doesn't work on a 3DPolyline. So I see Mat's problem.
Create Points - Interpolate sounds promising, but I've never used any of those.
Mat, sorry I have nothing to suggest.
Dave
Dave Stoll
Las Vegas, Nevada
In the past I've used the Create Points by Slope/Distance command to do this, with my HP48 handy to convert slope distances to horizontal. If you can convert the length of the conveyor and your bolt spacing then it might work.
Steve
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Hi Dave
it should not be too difficult to convert the 3dpline to a feature line which will work
Alternately, (and there are many) add point to polyline verts and iterpolate between known points. you can get several of the point tool to do it. Ex: By grade and distance answer affirmative to add intermdediate and enter the distance. Same for interpolate....
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Thanks Joe,
It never occured to me that converting the 3DPolyline to a Feature Line would make that work. I guess I need to start reading the command line more often. I tend to ignore it, to my disadvantage.
Dave
Dave Stoll
Las Vegas, Nevada
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Thanks for the replies and the help.
In the end I did it using the standard acad methods. I basically created a shorter line at a known slope distance along the design feature line, then used the end points as the lengths to which to divide the line to create my survey points.
Mat