polygon area, and the result is exactly one decimal point after the decimal.The output for each instance takes up one row.Sample Input3 0 0 1 0 0 14 1 0 0 1-1 0 0-10Sample Output0.52.0Topic Analysis:Calculates the area of a freeform polygon. Tool: Vector fork multiplication. The Vector fork is twice times the direction area of the triangle. Therefore, you can select any point, such as the origin and the two endpoints of each edge to form a triangle,
Formula:In practice, it is important to note, for example, that the coordinate information of n points is saved from a[0]-a[n-1], and you must not forget the a[n]=a[0] before summing up the sum, and then operate from 1 to N, for example:1 DoubleGetarea () {2 Doublesum =0.0;3A[n] = a[0];4 for(inti =1; i){5Sum + = a[i].x*a[i-1].y-a[i-1].x*a[i].y;6 }7 returnsum/2.0;8}This way, you will not miss the calculation of the last point with the first generated vector.Calculate the area of
To give you illustrator software users to detailed analysis to share the design of freeform bending pencil effect of the tutorial.
Tutorial Sharing:
Okay, the above information is small make up to you illustrator of this software users of the detailed design of a flexible pencil to draw the effect of the full content of the tutorial to share, you see the users here, small series believe that you now very clear the way
How does a PDF file draw a freeform callout?
1, we can search the relevant PDF editor software in Baidu to achieve the corresponding PDF file editing. The effect of opening a PDF file as shown in the figure.
2, find the toolbar in the PDF file Editor, find the Annotation tool in the toolbar, click on the Annotation tool, and select Add Polygon tool in the Drop-down tool menu.
3, add the Oval tool, you can appear in the PDF
Data
PB in the Data Window column border style only a few, if you want the border color is colored there is no way.
In fact, you can use dynamic create rectangle, change the border color of the Data window column, mainly applicable to free format
PB in the Data Window column border style only a few, if you want the border color is colored there is no way. In fact, you can use dynamic create rectangle, change the border color of the Data window column, applicable to free format (do not need
the Fact Editor (Fact editor). By default, the input style of the Fact Editor (fact Editor) is guided (guided), as shown in Figure 3.
Figure 3: The Fact Editor (fact Editor) for entering the style window using guided (guided) (click the image to see a larger picture)
You can enter a two-yuan relationship that provides forward reading (for example, employee works for department[employees in the department)) and reverse reading (for example, Department employs employee [departmental hire]). If
Now we are going to combine this lone leaf into a branch.
Do you think it is hard to see if you use such an identical leaf to make it into a branch? Flash provides us with a very good tool: "Freeform tool". With the "freeform tool" we can change the leaf that was drawn in front to the desired shape.
The freeform tool rotates the scaling element, or it can disto
ArcGIS Representation Representation Combat 4-free representationby Li YuanxiangThe editing features of representations have been described in the control points for representations in the previous section, and with the editing capabilities of representations, you can achieve some of the effects beyond the rules. But the previously used representation editing, is very simple editing, basically is a few auxiliary operations, then this chapter will bring you a very powerful way to edit the represe
This flash example made two cute bunnies play the Seesaw animation, mainly used in elliptical tools, gradient fill and freeform tools, easy to understand, suitable for practice.
Production steps:
1. Create a new flash document of the default size. First draw the sky background, draw a rectangle with a rectangular tool, press "relative to stage" in the alignment panel, then click the "match width and height" button, and the last point "align vertical
The last time I said to use GD for various geometric shapes, and fill color. Which deliberately put such a more complex situationLeft behind, this is the fill color for freeform and freeform.
Header ("Content-type:image/png");$im = imagecreate (200, 100);$col _blk = imagecolorallocate ($im, 0,0,0);$col _grn = imagecolorallocate ($im, 0,255,0);$parray = Array (40,10,60,10,70,20,60,50,40,50,30,20);Defines
This flash example made two cute bunnies play the Seesaw animation, mainly used in elliptical tools, gradient fill and freeform tools, easy to understand, suitable for practice.
Production steps:
1. Create a new flash document of the default size. First draw the sky background, draw a rectangle with a rectangular tool, press "relative to stage" in the alignment panel, then click the "match width and height" button, and the last point "alig
Unrestricted Freeform.plus.v2015.0.41+lovius. pro.v4.2.0.22+design.v2015.1.1Geomagic.freeform.plus.v2015.0.41.x64 multi-layer Image digital modeling systemgeometric.glovius.pro.v4.2.0.22geomagic.design.v2015.1.1Freeform is a key component of many digital manufacturing and design processes, and it can also be used as a final model from initial design to productionIndividual sources of the full workflow of the model. Models created in Freeform can be us
wps How to make the most Meng little bear up stairs fun Courseware
Operation Step scene Design: Bear to complete the most of the idiom after the fill in the stairs, which students can help him?
Ride the stairs.
1, create a new slide, click "AutoShape"--Basic shape--select "Cube", pull out a cube out, select the yellow handle up and down drag adjustment.
2. Click to select "Cube"--"drawing"--"rotate or flip"--"Flip Horizontal"
3, copy 6 identical cubes. A
-5)
Triple Recommendation: Click for free Download the latest version of WPS Office software "to see more computer tutorials
At this time the staircase side color is not ideal, with freeform polygon to fill landscaping.
6. AutoShape--line--freeform polygon--draw a staircase along the staircase side
(Figure 1-6)
7, select this irregular polygon--filled with two-color gradient--Set the color
In the last lesson we learned how to draw and edit graphic objects, and this lesson we began to learn how to scale, rotate, and skew objects using the Flash tool;
When you edit a graphic, you often resize the shape of the graphic by first selecting the object and then selecting the Freeform tool
, a small black block of eight control points appears around the selected object, and a small block is dragged along the direction of the cont
Last talk about using GD as a variety of geometries, as well as fill color. Which deliberately put such a more complex case
Left to the back, this is the freeform and freeform polygon fill color.
?
Header ("Content-type:image/png");
$im = imagecreate (200, 100);
$col _blk = imagecolorallocate ($im, 0,0,0);
$col _grn = imagecolorallocate ($im, 0,255,0);
$parray = Array (40,10,60,10,70,20,60,50,40,50,30,20)
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