多角形の描画

Namespace: fvalgcli
Assembly: fvalgcli (in fvalgcli.dll) Version: 3.1.0.0 (3.1.0.11)

Syntax

C#
public static int fnFIE_draw_polygon(
	FHANDLE hImg,
	DOUBLE_PTR val,
	f_draw_fill_mode mode,
	DPNT_T_PTR pnts,
	int num
)
Visual Basic
Public Shared Function fnFIE_draw_polygon ( 
	hImg As FHANDLE,
	val As DOUBLE_PTR,
	mode As f_draw_fill_mode,
	pnts As DPNT_T_PTR,
	num As Integer
) As Integer

Parameters

hImg
Type: fvalgcli..::..FHANDLE
画像のハンドル(type:bin,uc8,s16,us16,double,rgbq)
val
Type: fvalgcli..::..DOUBLE_PTR
濃度値を格納した配列の先頭アドレス
mode
Type: fvalgcli..::..f_draw_fill_mode
描画モード
  • F_DRAW_LINE :図形の線のみを描画
  • F_DRAW_FILL_IN :図形の内側を塗りつぶし
  • F_DRAW_FILL_OUT :図形の外側を塗りつぶし
pnts
Type: fvalgcli..::..DPNT_T_PTR
頂点群
num
Type: System..::..Int32
頂点数

Return Value

Type: Int32
以下のエラーコードを返します。

エラーコード:
f_err内容
F_ERR_NONE正常終了
F_ERR_NOMEMORYメモリ不足エラー
F_ERR_INVALID_IMAGE画像オブジェクトの異常
F_ERR_INVALID_PARAMパラメータ異常
F_ERR_NO_LICENCEライセンスエラー、または未初期化エラー

Examples

C# Copy imageCopy
//    $Revision: 1.1 $

using System;
using System.Collections.Generic;
using System.Text;
using fvalgcli;

namespace TC
{
    public partial class FIE
    {
        /// <summary>
        /// 多角形の描画.
        /// </summary>
        [FvPluginExecute]
        public void fnFIE_draw_polygon()
        {
            int status = (int)f_err.F_ERR_NONE;

            FHANDLE hImg = FHANDLE.Zero;    // 処理画像.
            DOUBLE_PTR val = IntPtr.Zero;    // 濃度値を格納した配列(チャネル数分)
            DPNT_T_PTR pnts = IntPtr.Zero;    // 頂点群.
            const f_draw_fill_mode mode = f_draw_fill_mode.F_DRAW_FILL_IN;    // 描画モード.
            int num = 5;                    // 頂点数.

            const int width = 128;
            const int height = 64;

            try
            {
                hImg = api.fnFIE_img_root_alloc((int)f_imgtype.F_IMG_UC8, 1, width, height);
                api.fnFIE_img_clear(hImg, 128 / 2);

                int channels = api.fnFIE_img_get_channels(hImg);

                // 配列の確保(アンマネージヒープに確保される).
                val = DOUBLE_PTR.alloc(channels);
                pnts = DPNT_T_PTR.alloc(num);

                for (int i = 0; i < channels; i++)
                    val[i] = 128;


                // 多角形の設定.
                pnts[0] = DPNT_T.init(width / 2,    0);
                pnts[1] = DPNT_T.init(width - 1,    height - 1);
                pnts[2] = DPNT_T.init(0,            height / 4);
                pnts[3] = DPNT_T.init(width - 1,    height / 4);
                pnts[4] = DPNT_T.init(0,            height - 1);

                // 処理の実行.
                status = api.fnFIE_draw_polygon(hImg, val, mode, pnts, num);

                // エラー判定.
                Assert.IsTrue(status == (int)f_err.F_ERR_NONE, "エラーが発生しました。({0})", (f_err)status);

                // 処理画像の保存.
                api.fnFIE_save_png(ResultDir + "/fnFIE_draw_polygon.png", hImg, -1);
            }
            finally
            {
                // オブジェクトの開放.
                hImg.Dispose();
                val.Dispose();
                pnts.Dispose();
            }
        }
    }
}


Visual Basic Copy imageCopy
'    $Revision: 1.1 $

Imports System.Collections.Generic
Imports System.Text
Imports fvalgcli

Public Partial Class FIE
    ''' <summary>
    ''' 多角形の描画.
    ''' </summary>
    <FvPluginExecute> _
    Public Sub fnFIE_draw_polygon()
        Dim status As Integer = CInt(f_err.F_ERR_NONE)

        Dim hImg As FHANDLE = FHANDLE.Zero
        ' 処理画像.
        Dim val As DOUBLE_PTR = IntPtr.Zero
        ' 濃度値を格納した配列(チャネル数分)
        Dim pnts As DPNT_T_PTR = IntPtr.Zero
        ' 頂点群.
        Const  mode As f_draw_fill_mode = f_draw_fill_mode.F_DRAW_FILL_IN
        ' 描画モード.
        Dim num As Integer = 5
        ' 頂点数.
        Const  width As Integer = 128
        Const  height As Integer = 64

        Try
            hImg = api.fnFIE_img_root_alloc(CInt(f_imgtype.F_IMG_UC8), 1, width, height)
            api.fnFIE_img_clear(hImg, 128 \ 2)

            Dim channels As Integer = api.fnFIE_img_get_channels(hImg)

            ' 配列の確保(アンマネージヒープに確保される).
            val = DOUBLE_PTR.alloc(channels)
            pnts = DPNT_T_PTR.alloc(num)

            For i As Integer = 0 To channels - 1
                val(i) = 128
            Next


            ' 多角形の設定.
            pnts(0) = DPNT_T.init(width \ 2, 0)
            pnts(1) = DPNT_T.init(width - 1, height - 1)
            pnts(2) = DPNT_T.init(0, height \ 4)
            pnts(3) = DPNT_T.init(width - 1, height \ 4)
            pnts(4) = DPNT_T.init(0, height - 1)

            ' 処理の実行.
            status = api.fnFIE_draw_polygon(hImg, val, mode, pnts, num)

            ' エラー判定.
            Assert.IsTrue(status = CInt(f_err.F_ERR_NONE), "エラーが発生しました。({0})", CType(status, f_err))

            ' 処理画像の保存.
            api.fnFIE_save_png(ResultDir & "/fnFIE_draw_polygon.png", hImg, -1)
        Finally
            ' オブジェクトの開放.
            hImg.Dispose()
            val.Dispose()
            pnts.Dispose()
        End Try
    End Sub
End Class

See Also