palette

I wonder, can I used two different pm3d palettes in splot? I use Gnuplot 5.2 and want to show two 3D surfaces, like ocean and land with different color palettes. Can I define this in some way like: splot "file" u 1:2:3 with pm3d palette 1, "file" 1:2:4 with pm3d palette 2 The data in column 1 and 2 are integers that extend from 0 to 100, they define a grid. The boundaries may be different for different maps. The z axis values are real numbers representing relative changes on logarithmic scale and extend from -10 to 10. The following might be solution for you. I do not see how to change the

I want to plot m*n matrix, each element of which is an rgb triple, like in the following gnuplot code snippet (rgb matrix of 3*3 ): $cross << EODcross 255 0 0 0 0 0 255 0 0 0 0 0 0 0 0 0 0 0 255 0 0 0 0 0 255 0 0 EODcross Black cross on red background. I can change delimiters between columns and color components, if needed. Can I achieve the desired avoiding set palette rgbformulae i,j,k and directly using $cross data? Something like: plot '$cross' matrix with image rgb If not, I can pass 24bit-wide integers (of course, in textual representation, i.e. precalculated and converted to text r +

We're maintaining an old video game that uses a full-screen 256-color graphics mode with DirectDraw. The problem is, some applications running in the background sometimes try to change the system palette while the game is running, which results in corrupted graphics. We can (sometimes) detect when this happens by processing the WM_PALETTECHANGED message. A few update versions ago we added logging (just log the window title/class/process name), which helped users identify offending applications and close them. MSN Live Messenger was a common culprit. The problem got worse when we found out that

login.h内容： #ifndef LOGIN_H #define LOGIN_H #include <QMainWindow> #include <QDebug> #include <QJsonObject> #include <QLabel> #include <QLineEdit> #include <QRadioButton> #include <QPushButton> #include <QMessageBox> #include <QThread> namespace Ui { class CLogin; } class CLogin : public QMainWindow { Q_OBJECT public: explicit CLogin(QWidget *parent = 0); ~CLogin(); void Init(); private: Ui::CLogin *ui; QLabel *pLabelUsrName; QLabel *pLabelUsrPwd; QLineEdit *pLineEditUsrName; QLineEdit *pLineEditUsrPwd; QRadioButton *pRadioButtonSavePwd; QRadioButton *pRadioButtonAutoLogin; QPushButton

首先新建一个项目：为了方便，直接拷贝的书上源码，书为《QT5开发及实例（第二版）》 头文件： #ifndef KEYEVENT_H #define KEYEVENT_H #include < QWidget > #include < QKeyEvent > #include < QPaintEvent > class KeyEvent : public QWidget { Q_OBJECT public : KeyEvent ( QWidget * parent = 0 ); ~ KeyEvent (); void drawPix (); void keyPressEvent ( QKeyEvent *); void paintEvent ( QPaintEvent *); private : QPixmap * pix ; QImage image ; int startX ; int startY ; int width ; int height ; int step ; }; #endif // KEYEVENT_H 源代码： #include "keyevent.h" #include < QPainter > KeyEvent :: KeyEvent ( QWidget * parent ) : QWidget ( parent ) { setWindowTitle (

一、如何在Widget中利用代码添加背景图片 this->setAutoFillBackground(true); // QPalette palette = this->palette(); palette.setBrush(QPalette::Window, QBrush(QPixmap(":/images/bg2.jpg").scaled(// 缩放背景图. this->size(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation))); this->setPalette(palette); 　　 文章来源: 3.Qt -QSS

I'm plotting results from various British elections in Leaflet and ran into a bit of a problem with legends. For the various results in the general election I'm using the same colour function with different domain for the different data (the yellow-> purple scale in the picture) This is created with (for the first two as examples): labvotescols <- colorNumeric( c("Yellow", "Purple"), domain = Westminster$LabourVotes, ukipvotescols <- colorNumeric( c("Yellow", "Purple"), domain = Westminster$UKIPVotes, and so on... Currently I have the legend map = map %>% addLegend("bottomright", pal =