C++ Builder XE4 > TeeChart > 軸 > 主目盛と副目盛 > [長さ]と[間隔]と[太さ]を変更する

動作環境

C++ Builder XE4

概要

• 主目盛と副目盛の表示長さと間隔を変更する

実装

Unit1.cpp

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include <DateUtils.hpp>
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormShow(TObject *Sender)
{
    Chart1->Series[0]->XValues->DateTime = true;
    Chart1->BottomAxis->DateTimeFormat = L"nn:ss";

    TDateTime dt;

    dt = Now();

    double yval;
    for (int idx=0; idx < 10; idx++) {
        yval = (1+ idx) % 2;
        Series1->AddXY(dt, yval, "", clRed);
        dt = IncSecond(dt, 1);
    }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
    Chart1->LeftAxis->TickLength = 10;
    Chart1->LeftAxis->MinorTickLength = 20;

    Chart1->LeftAxis->Increment = 0.2;
    Chart1->LeftAxis->MinorTickCount = 3;

    Chart1->LeftAxis->Ticks->Width = 8;
    Chart1->LeftAxis->MinorTicks->Width = 4;
}
//---------------------------------------------------------------------------

動作例

ソフト起動時

Button1押下後

• 主目盛の長さが10に
• 副目盛の長さが20に
• 主目盛の間隔が0.2に
• 副目盛の間隔は主目盛に対して(3+1)等分に
• 主目盛の太さを8に
• 副目盛の太さを4に