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dveith

Plat Map Help

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Using these instructions,  

 

https://www.homedesignersoftware.com/support/article/KB-00850/drawing-a-plot-plan.html

 

I can get the two straight lines, but I'm not sure how to do the arc.

 

Line 1: N 28 47 54 E  Length: 98.66'

 

Line 2: S 18 05 06 E  Length: 136.69'

 

Arc (C23): 

 

Delta: 128' 49' 04''

Radius: 120'
Length: 269.80'
Chord Brng: S  1' 20' 55''  W
Chord Dst: 216.46'
 
Thanks for your help.
 

post-2090-0-58381400-1447358991_thumb.jpg

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You might check David Potters YouTube videos. I know he did one on getting a plat into Home Designer. 

 

I believe he traced over a scanned copy.

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Dave,

 

Draw your two LINES as described in the article.  Hereafter they'll be referred to as LINE 1 and LINE 2.

 

It may be helpful to turn on the option to edit object parts.

 

Draw a CAD arc between the outer end points of LINE 1 and LINE 2.  Make sure the arc is concave in the correct direction as shown on your plat.

 

Draw a CAD line (hereafter referred to as the layout line) from the midpoint of the arc to the center of the arc.  You may need to turn on the option to show arc centers and ends.   Extend the end of the layout line that is at the center of the arc some distance away from your arc.

 

Draw a CAD circle and set its radius to the desired arc radius.  Move the circle so its center is on the layout line.  When positioning the circle on the layout line, make sure the circle's circumference is to the left of the LINE 1 end point.

 

Now select and move the layout line from the point at the midpoint of the arc to the point at the end of LINE 1 using the point-to-point move tool found on the edit object toolbar.  The layout line should now intercept the circle's circumference.

 

Select the circle and using the point-to-point move tool found on the edit object toolbar, move it from the point where the circle intercepts the layout line to the point at the end of the LINE 1.

 

If you've done this correctly, your circle should now pass through the end of LINE 2.

 

Now select your arc and drag the trianglular grip to snap to the circumference of the circle.

 

Delete the circle and the layout line, and you should now have CAD lines/arcs that match your plat.

 

Good luck, and hope this helps. :)

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A key datum the article left out is that in Pro, where you have the ability to create a variable CAD 2D magnetic "North Pointer", with it present the input lines will use whatever orientation you have set with a CAD North Pointer, if one is not created by you then the software considers that directly "up screen" perpendicular is "North" (Architectural and Suite do not have a variable "North Pointer" object available), Pro does.

 

DJP

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