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New Function| fleur1990 (5) |  |
| Hello Hello! can you explain me what this function does line by line please Polyline drawFunction(const vector<double>& inValues, double inScaleX, double inScaleY) { Polyline lLine; for(int i = 0; i < inValues.size(); ++i) { lLine += Point(i*inScaleX, inValues[i]*inScaleY); } return lLine; } thank you very much | |
| screw (126) | | ||
| Welcome here! It is rewarding to use the source code tag from format notation. Like this:
Ok, this is a function. Here is a description about functions: http://www.codersource.net/c++_tutorial_functions.html (But you can find more info of course.) This drawFunction return a Polyline type value. You didn' write down what is it. It is possible that is a class. drawFunction has some argument: const vector<double>& inValues is a container. You can store many object in this container. Some info about vector:http://www.cplusplus.com/reference/stl/vector/ http://www.cplusplus.com/reference/stl/vector/push_back/ double inScaleX, double inScaleY arguments allow us that the points can be scaled with these values. (I think.) 4. line: iLine object is created. 5. line: It is a statement, called for. Some info: http://www.hitmill.com/programming/cpp/forLoop.htm Here all double type value are evaluated from vector (look at the size method of vector) and iLine object is added with some values. I don't know the Point class. At least iLine object is returned in the 8.line. | |||
| kbw (1497) | |
| The point of the class is pretty obvious. Is this your homework? | |
| writetonsharma (832) | |
| It is trying to draw a 3D sphere with lighting and shadows. | |
Last edited on | |
| fleur1990 (5) | |
| thank you every body it answers to my questions :) | |
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