QwtVectorFieldSample(3)

🦋 QwtVectorFieldSample(3) — the vector-field-sample bestie guide

From the Library Functions Manual, bestie: meet QwtVectorFieldSample(3). It’s giving tiny-but-important sample class energy. 💅

✨ NAME ✨

QwtVectorFieldSample — Sample used in vector fields.

🌈 SYNOPSIS 🌈

#include <qwt_samples.h>

💖 Public Member Functions 💖

• QwtVectorFieldSample (double x=0.0, double y=0.0, double vx=0.0, double vy=0.0) — Constructor, periodt.
• QwtVectorFieldSample (const QPointF &pos, double vx=0.0, double vy=0.0) — Constructor, again — this one takes a QPointF position.
• QPointF pos () const — Grabs the position.
• bool isNull () const — Checks if the vector part is null.

🎀 Public Attributes 🎀

• double x — x coordinate of the position.
• double y — y coordinate of the position.
• double vx — x coordinate of the vector.
• double vy — y coordinate of the vector.

🌸 Detailed Description 🌸

This is the sample type used in vector fields, no cap.

A vector field sample is basically a position plus a vector — usually representing some direction and magnitude — attached to that position. It’s literally a little “here’s where” plus “here’s the push” combo. 🦋

👀 See also 👀

QwtVectorFieldData

📍 Definition at line 243 of file qwt_samples.h.

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🛠️ Constructor & Destructor Documentation 🛠️

💜 Constructor #1

QwtVectorFieldSample::QwtVectorFieldSample (double posX = 0.0, double posY = 0.0, double vectorX = 0.0, double vectorY = 0.0) [inline]

Constructor. Bestie, here are the parameters:

• posX — x coordinate of the position.
• posY — y coordinate of the position.
• vectorX — x coordinate of the vector.
• vectorY — y coordinate of the vector.

📍 Definition at line 277 of file qwt_samples.h.

🧚 Constructor #2

QwtVectorFieldSample::QwtVectorFieldSample (const QPointF & pos, double vectorX = 0.0, double vectorY = 0.0) [inline]

Constructor. This one’s parameters are:

• pos — Position.
• vectorX — x coordinate of the vector.
• vectorY — y coordinate of the vector.

📍 Definition at line 293 of file qwt_samples.h.

🔥 Member Function Documentation 🔥

⭐ bool QwtVectorFieldSample::isNull () const [inline]

Returns:

• true, if vx and vy are 0.

📍 Definition at line 309 of file qwt_samples.h.

🌈 QPointF QwtVectorFieldSample::pos () const [inline]

Returns:

• x/y coordinates as QPointF.

📍 Definition at line 303 of file qwt_samples.h.

👑 Member Data Documentation 👑

💫 double QwtVectorFieldSample::vx

x coordinate of the vector.

📍 Definition at line 263 of file qwt_samples.h.

🌟 double QwtVectorFieldSample::vy

y coordinate of the vector.

📍 Definition at line 266 of file qwt_samples.h.

🍓 double QwtVectorFieldSample::x

x coordinate of the position.

📍 Definition at line 257 of file qwt_samples.h.

🎀 double QwtVectorFieldSample::y

y coordinate of the position.

📍 Definition at line 260 of file qwt_samples.h.

💌 Author 💌

Generated automatically by Doxygen for Qwt User's Guide from the source code. Iconic auto-gen behavior, honestly. ✨

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💖 Cute sign-off: source/version energy is Qwt User's Guide, generated by Doxygen from the source code, and the footer date slot isn’t doing a little cameo here, bestie. Bye! 💅