Can anybody help me in choosing the right transformers for this process.
Question
Creating polygon using points stored in CSV
+1I have CSV file as input which holds xy co ordinates, I want to use these co ordinates to make polygon geometries which is to be written to oracle spatial.
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+22- Safer
Hi,
Do you have an ID that defines the grouping of points into individual polygons?
If so then you can use the point connector (connection break attributes : ID).
Itay
Hi,
it depends on your CSV, but here are some starting points:
- 2DPointReplacer to create points from a coordinate (X,Y) value
- 2DPointAdder to add another coordinate to an existing point so as to form a line, or to add a vertex to an existing line
- LineJoiner to join separate line segments (hint: features must enter in the correct order, use a Sorter first).
- LineCloser to close a line segment into a polygon
David
+1The CSV I am talking about holds the co ordinates in
Col1 (X1) | Col2 (Y1) | Col3 (X2) | Col4(Y2)
And I have to read the points using point1(x1,y1), point2(x1,y2), point3(x2,y2), point4(x2,y1)
Hi,
you can do that based on David's suggestion. Try connecting these transformers in a series: 2DPointReplacer X = col1, Y = col2 2DPointAdder X = col1, Y = col4 2DPointAdder X = col3, Y = col4 2DPointAdder X = col3, Y = col2 LineColser (or 2DPointAdder X = col1, Y = col2)
Takashi
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