User Tools

Site Tools


Sidebar

en:objects:canvas:draw:draw_image_by_number

This is an old revision of the document!


draw_image_by_number

draw_image_by_number($number,$path,$frame=-1); - this function is used to draw an image on an element, finding it by the specified number.

the input Function accepts parameters:

  • $number – the number by which we find the element we need on the page (int). Element numbers start with 0 and different types of elements have their own numbering.To find out the item number, you can use either the item inspector or the context menu, or view it in the list of items.
  • $path – path to the image to draw on the element
  • $frame – number of the frame in which we are looking for the element (string). Frame numbers start from zero. By default, -1 - the element is not in the frame. You can find out the number of the frame that contains the item you need from the task inspector, the context menu, and the list of items panel.
    With version 4.6.41 of postpone: you can pass nested frames, the principle is the same, a string is numbered frames separated by : for example, if you transfer "1:0:5" - will the selected frame number 1 in it under the frame with the number 0 and the subframe number 5
    Since version 7.0.38, you can pass "url=>XXX", then search for the frame that contains the specified src, or pass " name=>XXX" - then the frame will be searched by the specified part of the name.

    After the function returns the result of their work in the script (the return value type is boolean):
  • true – executed successfully
  • false to find this element failed (e.g. no items that meet the specified criteria or not this frame)

    PHP example:

    <?php $xhe_host = "127.0.0.1:7024";
     
    //connect the object to control the emulator, if not already connected
    if(!isset($path))
      $path = "../../../Templates/xweb_human_emulator.php";
    require($path);
     
    //Start
    echo "<hr> <font color = blue> checkbox->".basename(__FILE__)."</font> <hr>";
     
    //1
    echo "1.Let's go to the polygon:";
    echo $browser->navigate("http://humanemulator.net/poligon/canvas.html")."<br>";
     
    //2
    echo "2.Draw the picture on the element by number(draw on the canvas):";
    echo $canvas->draw_image_by_number(0, "test/canvas_fp.png")." n";
     
    //3
    echo "3.Draw a picture on a nonexistent element:";
    if(!$canvas->draw_image_by_number(100500, "test/canvas_fp.png"));
      echo "no such element <br>";
     
    //4
    echo "4.Draw a picture on the element with 1 number in the zero frame:";
    echo $canvas->draw_image_by_number(1, "test/canvas_fp.png", "0")." n";
    sleep(2);
     
    //five
    echo "5.Draw a picture on a non-existent element in frame zero:";
    if(!$canvas->draw_image_by_number(100500, "test/canvas_fp.png", 0))
      echo "no such element <br>";
     
    //6
    echo "6.Draw a picture on an element in a non-existent frame:";
    if(!$canvas->draw_image_by_number(7, "element.tagName", 100500))
      echo "no such frame <br>";
     
     
    //end
    echo "<hr> <br>";
     
    //Quit
    $app->quit();
    ?>

    Python example:

    # Additional paths
    import sys
    sys.path.insert(0, '../../../Templates PY/')
     
    xhe_host = "127.0.0.1:7024"
    from xweb_human_emulator import *
     
    # Start
    echo("<hr> <font color = blue> textarea.xxxxxxxxx </font> <hr>")
     
    # 1
    echo("1.Let's go to the polygon:");
    echo(browser.navigate("http://humanemulator.net/poligon/canvas.html"), "<br>");
     
    # 2
    echo("2.Draw the picture on the element by number(draw on the canvas):");
    echo(canvas.draw_image_by_number(0, "test/canvas_fp.png"), "
    ");
     
    # 3
    echo("3.Draw a picture on a nonexistent element:");
    if not canvas.draw_image_by_number(100500, "test/canvas_fp.png"):
      echo("no such element <br>");
     
    # 4
    echo("4.Draw a picture on the element with 1 number in the zero frame:");
    echo(canvas.draw_image_by_number(1, "test/canvas_fp.png", "0"), "
    ");
    sleep(2);
     
    # five
    echo("5.Draw a picture on a non-existent element in a zero frame:");
    if not canvas.draw_image_by_number(100500, "test/canvas_fp.png", "0"):
      echo("no such element <br>");
     
    # 6
    echo("6.Draw a picture on an element in a non-existent frame:");
    if not canvas.draw_image_by_number(7, "element.tagName", "100500"):
      echo("no such frame <br>");
     
    # end
    echo("<hr> <br>")
     
    # Quit
    app.quit()

    C# example:

    #region using
     
    using System;
    using System.Diagnostics;
    using System.Collections.Generic;
    using System.Linq;
    using System.IO;
    using System.Text;
    using System.Threading;
     
    using XHE;
    using XHE.XHE_DOM;
    using XHE.XHE_System;
    using XHE.XHE_Window;
    using XHE.XHE_Web;
     
    #endregion
     
     class Program: XHEScript
     {
    static void Main(string [] args)
    {
    //init XHE
    server = "127.0.0.1:7024";
    InitXHE();
     
    //Start
    echo("<hr> <font color = blue> table.export_to_csv </font> <hr>");
     
    //1 step
    echo("1.Let's go to the polygon:");
    echo(browser.navigate("www.humanemulator.net/poligon/table.html") + "<br>");
     
    //1
    echo("1.Let's go to the polygon:");
    echo(browser.navigate("http://humanemulator.net/poligon/canvas.html") + "<br>");
     
    //2
    echo("2.Draw the picture on the element by number(draw on the canvas):");
    echo(canvas.draw_image_by_number(0, "test/canvas_fp.png") + " n");
     
    //3
    echo("3.Draw a picture on a nonexistent element:");
    if(!canvas.draw_image_by_number(100500, "test/canvas_fp.png"));
    echo("no such element <br>");
     
    //4
    echo("4.Draw a picture on the element with 1 number in the zero frame:");
    echo(canvas.draw_image_by_number(1, "test/canvas_fp.png", "0") + " n");
    sleep(2);
     
    //five
    echo("5.Draw a picture on a non-existent element in a zero frame:");
    if(!canvas.draw_image_by_number(100500, "test/canvas_fp.png", "0"))
    echo("no such element <br>");
     
    //6
    echo("6.Draw a picture on an element in a nonexistent frame:");
    if(!canvas.draw_image_by_number(7, "element.tagName", "100500"))
    echo("no such frame <br>");
     
    //end
    echo("<hr> <br>");
     
    app.quit();
    }
    }

    Java Script example:

    //connect the object to control the emulator, if not already connected
    xhe_host = "127.0.0.1:7024";
    echo = require("../../../Templates JS/xweb_human_emulator.js");
     
    //Start
    echo("<hr> <font color = blue> textarea.get_cols_by_name </font> <hr>");
     
    //1
    echo("1.Let's go to the polygon:");
    echo(browser.navigate("http://humanemulator.net/poligon/canvas.html") + "<br>");
     
    //2
    echo("2.Draw the picture on the element by number(draw on the canvas):");
    echo(canvas.draw_image_by_number(0, "test/canvas_fp.png") + " n");
     
    //3
    echo("3.Draw a picture on a nonexistent element:");
    if(!canvas.draw_image_by_number(100500, "test/canvas_fp.png"));
      echo("no such element <br>");
     
    //4
    echo("4.Draw a picture on the element with 1 number in the zero frame:");
    echo(canvas.draw_image_by_number(1, "test/canvas_fp.png", "0") + " n");
    app.sleep(2);
     
    //five
    echo("5.Draw a picture on a non-existent element in a zero frame:");
    if(!canvas.draw_image_by_number(100500, "test/canvas_fp.png", "0"))
      echo("no such element <br>");
     
    //6
    echo("6.Draw a picture on an element in a nonexistent frame:");
    if(!canvas.draw_image_by_number(7, "element.tagName", "100500"))
      echo("no such frame <br>");
     
    //end
    echo("<hr> <br>");
     
    //Quit
    app.quit();
  • en/objects/canvas/draw/draw_image_by_number.1605223095.txt.gz · Last modified: 2020/11/13 02:18 by sales