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C++ Graphic::lcRestoreMatrix方法代码示例

本文整理汇总了C++中basicgl::Graphic::lcRestoreMatrix方法的典型用法代码示例。如果您正苦于以下问题:C++ Graphic::lcRestoreMatrix方法的具体用法?C++ Graphic::lcRestoreMatrix怎么用?C++ Graphic::lcRestoreMatrix使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在basicgl::Graphic的用法示例。


在下文中一共展示了Graphic::lcRestoreMatrix方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: draw


//.........这里部分代码省略.........
                            LCreal north = 0;
                            LCreal east  = 0;

                            if (symbols[i]->isPositionLL()) {
                                // 2a) we were give L/L so convert to NED coordinates
                                double lat = symbols[i]->getXPosition();
                                double lon = symbols[i]->getYPosition();
                                latLon2Earth(lat, lon, &north, &east);
                            }
                            else {
                                // 2b) we were give NED coordinates
                                north = (LCreal) symbols[i]->getXPosition();
                                east  = (LCreal) symbols[i]->getYPosition();
                            }

                            // 2c) convert the NED coordinates to aircraft coordinates
                            earth2Aircraft(north, east, &acX, &acY);
                        }

                        // 3) Convert the aircraft coordinates to screen coordinates
                        aircraft2Screen(acX, acY, &xScn, &yScn);

                        // 4) Save the screen coordinates (inches)
                        symbols[i]->setXScreenPos(xScn);
                        symbols[i]->setYScreenPos(yScn);
                    }

                    // In range?  Do we care?
                    bool inRange  = !showInRangeOnly || (((xScn * xScn) + (yScn * yScn)) <= radius2);

                    if (inRange) {

                        // set symbol's visibility
                        g->setVisibility(true);

                        // and set the symbol's position
                        g->lcSaveMatrix();
                        g->lcTranslate(xScn, yScn + displacement);

                        // pass the argument value to the symbol (if needed)
                        if (symbols[i]->getValue() != 0) {
                            g->event(UPDATE_VALUE, symbols[i]->getValue());
                        }

                        // rotate the symbol's heading subcomponent (if needed)
                        // -- sending a 'Z' rotation event to a component named 'hdg'
                        if (symbols[i]->isHeadingValid()) {
                            BasicGL::Graphic* phdg = symbols[i]->getHdgGraphics();
                            if (phdg == 0) {
                                Basic::Pair* hpair = (Basic::Pair*) g->findByName("hdg");
                                if (hpair != 0) {
                                    phdg = dynamic_cast<Graphic*>(hpair->object());
                                    symbols[i]->setHdgGraphics(phdg);
                                }
                            }
                            if (phdg != 0) {
                                Basic::Degrees* angObj = symbols[i]->getHdgAngleObj();
                                if (angObj == 0) {
                                    angObj = new Basic::Degrees();
                                    symbols[i]->setHdgAngleObj(angObj);
                                }
                                double relHeading = symbols[i]->getHeadingDeg() - getHeadingDeg();
                                angObj->set(-relHeading);
                                phdg->event(UPDATE_VALUE6, angObj);
                            }
                        }
                    }
                    else {
                        // out of range, so clear the graphical component's visibility flag
                        g->setVisibility(false);
                    }
                }

                // When the symbol visibility flag is false ...
                else {
                    Basic::Pair* p = symbols[i]->getSymbolPair();
                    BasicGL::Graphic* g = (BasicGL::Graphic*)p->object();
                    g->setVisibility(false);
                }
            }
        }

        // ---
        // Let our base class handle the drawing
        // ---
        BaseClass::draw();

        // ---
        // now restore the matrices on all of our graphical components
        // ---
        for (int i = 0; i < MAX_SYMBOLS; i++) {
            if (symbols[i] != 0) {
                Basic::Pair* p = symbols[i]->getSymbolPair();
                BasicGL::Graphic* g = (BasicGL::Graphic*)p->object();
                if (g->isVisible()) g->lcRestoreMatrix();
            }
        }

    }
}
开发者ID:azcbuell,项目名称:OpenEaagles,代码行数:101,代码来源:SymbolLoader.cpp


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