read_data_code_2d_modelT_read_data_code_2d_modelReadDataCode2dModelReadDataCode2dModelread_data_code_2d_model (算子)

名称

read_data_code_2d_modelT_read_data_code_2d_modelReadDataCode2dModelReadDataCode2dModelread_data_code_2d_model — 从文件中读取二维数据码模型并创建新模型。

签名

read_data_code_2d_model( : : FileName : DataCodeHandle)

描述

算子 read_data_code_2d_modelread_data_code_2d_modelReadDataCode2dModelReadDataCode2dModelReadDataCode2dModelread_data_code_2d_model reads the 2D data code model file FileNameFileNameFileNameFileNamefileNamefile_name and creates a new model that is an identical copy of the saved model. The parameter DataCodeHandleDataCodeHandleDataCodeHandleDataCodeHandledataCodeHandledata_code_handle returns the handle of the new model. The model file FileNameFileNameFileNameFileNamefileNamefile_name must be created by the operator write_data_code_2d_modelwrite_data_code_2d_modelWriteDataCode2dModelWriteDataCode2dModelWriteDataCode2dModelwrite_data_code_2d_model。The default HALCON file extension for the 2D data code model is 'dcm'.

For an explanation of the concept of the 2D data code reader see the introduction of chapter Identification / Data Code。

执行信息

多线程类型：可重入（与非独占算子并行运行）。
多线程作用域：全局（可从任何线程调用）。
未采用并行化处理。

此算子返回一个句柄。请注意，即使该句柄被用作特定算子的输入参数，这些算子仍可能改变此句柄类型的实例状态。

参数

FileNameFileNameFileNameFileNamefileNamefile_name (输入控制) filename.read → (string)

Name of the 2D data code model file.

默认值： 'data_code_model.dcm' "data_code_model.dcm" "data_code_model.dcm" "data_code_model.dcm" "data_code_model.dcm" "data_code_model.dcm"

File extension: .dcm

DataCodeHandleDataCodeHandleDataCodeHandleDataCodeHandledataCodeHandledata_code_handle (输出控制) datacode_2d → (handle)

Handle of the created 2D data code model.

示例（HDevelop）

* This example demonstrates how a model that was saved in an earlier
* session can be used again by reading the model file

* Create a model by reading by reading a data code model file
read_data_code_2d_model ('ecc200_trained_model.dcm', DataCodeHandle)
* Read a symbol image
read_image (Image, 'datacode/ecc200/ecc200_cpu_010')
* Read the symbol in the image
find_data_code_2d (Image, SymbolXLDs, DataCodeHandle, [], [], \
                   ResultHandles, DecodedDataStrings)
* Clear the model
clear_data_code_2d_model (DataCodeHandle)

结果

算子 read_data_code_2d_modelread_data_code_2d_modelReadDataCode2dModelReadDataCode2dModelReadDataCode2dModelread_data_code_2d_model 返回值 2 ( H_MSG_TRUE) if the named 2D data code file was found and correctly read.否则，将抛出异常。

可能的后继

find_data_code_2dfind_data_code_2dFindDataCode2dFindDataCode2dFindDataCode2dfind_data_code_2d

替代

create_data_code_2d_modelcreate_data_code_2d_modelCreateDataCode2dModelCreateDataCode2dModelCreateDataCode2dModelcreate_data_code_2d_model

另见

write_data_code_2d_modelwrite_data_code_2d_modelWriteDataCode2dModelWriteDataCode2dModelWriteDataCode2dModelwrite_data_code_2d_model, clear_data_code_2d_modelclear_data_code_2d_modelClearDataCode2dModelClearDataCode2dModelClearDataCode2dModelclear_data_code_2d_model

模块

数据码

算子