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I have line and point layer. I connected line layer with points using connect nodes to line in processing toolbox. After creating a connection line (green color), I used line intersection from processing toolbox to extract the nodes/vertex of each starting point of the connection line as shown in red color. The problem here is:

  • The line intersection generates nodes for every intersection of line as circled with black color in image. I only want to extract nodes of lines which connect point and a line layer.
  • I also tried Extract specific vertices tool as suggested in previous questions (here), but it does the same thing as line intersection function.

enter image description here

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    May be you can first select the lines which have a blue point connection and then make your intersection only on the selected lines, which will avoid intersections with red-red.
    – eurojam
    Dec 16, 2020 at 8:58
  • You say you have a point and a line layer and than connect nodes to line, thus you create another line. However, on your screenshot I see only one line layer. Can you explain? As well, I can't find a tool in the tollbox named connect nodes to line - which one are you using?
    – Babel
    Dec 16, 2020 at 21:29

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the tool 'Extract specific vertices' can fit your demand. but you must set parameter 'vertex indices' to '0,-1' telling the program to choose the first point and the last point

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