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About Poly-U


Video Demo

1 Vector


Image vectorization to polyline

2 Optimize


Polyline optimization 1

(simplify vertices)


Polyline optimization 2

(delete duplicate vertices)


Polyline optimization 3 (smooth)


Project curves to the XY plane

3 Vertexes Number


Output curve vertexes list and number


Number curve nodes 


Output ellipses to list and number


Output arcs to list and number


Output circles to list and number


Single curve intersection


Multiple curves intersection


Draw curves by coordinate file

4 Creative Curve


Curve reverse


Affective curve


Quadrilateral mapping deformation


Curves blend gradient


Similar shape gradient

Curve horizontal influence
Interpolated rectangular array
Random and regular array
Curve area influence
Image to holes array

5 Convert


Burst text into curves


Old polyline to lightweight


Various curves to Splines


Spline to lightweight polyline


Lightweight polyline to old polyline


Divide polyline by a fixed number


Divide polyline by equidistant distance

6 Link


Batch polylines modify width


Batch polylines close


Batch polylines open


Spline auto connect


Spline connection vertically 


Spline connection horizontally 

7 Contour & Offset


Rebuild hatch boundaries


Maximum outer contour


Inner contour offset


Batch offset copy

8 Math


Mathematical formula curve

9 Skecth

Easy freehand drawing


Freehand spline


Freehand polyline


Freehand revision cloud

Poly-U features:

    • Mathematical formula curve, 67 kinds of mathematical formulas, can be drawn parametrically and accurately. Such as heart-shaped line, orchid line, vine leaf line, etc.
    • Image vectorization: change the picture into CAD vector lines, which is very fast and easy to operate.
    • Image to holes¬†array painting: convert the picture into shape array¬†in CAD, such as circle, square, diamond, heart, etc. the size and density of shape array will change automatically to form a picture.
    • Creative curve - Horizontal Curve influence: use a curve to affect a group of objects, resulting in horizontal displacement or compression.
    • Creative curve - create interpolated rectangular array
    • Creative curve - random and regular array: offset replication includes random array, half wave array, full wave array, exponential array and logarithmic array
    • Creative curve - curve area influence, dynamic click scaling
    • Creative curve - Create gradient curves between curves
    • Creative curve - Creates a gradient shape between two similar shapes
    • Creative curve - Influence curve: control the displacement, scaling, rotation and other deformation of surrounding objects through the curve to create a rhythmic design group.
    • Creative curve - Curve quadrilateral mapping: for example, a square pattern can be projected onto a sector, or onto a cylindrical surface.
    • Curve Optimization: reduce complexity, increase smoothness, delete duplicate vertices, etc
    • Curve conversion: you can convert types between polylines, lofted curves, arcs, circles, and ellipses.
    • Fixed number bisection and fixed length bisection curve
    • Text to curve
    • Draw an associative curve
    • Reconstruct the inner and outer contours of the pattern
    • Batch draw multiple inner contours and offsets
    • Draw the outline of complex graphics
    • Batch multiple offset copy
    • Curve batch thickening, closing, opening, etc

Poly-U 2021