public SapModel(string _modelDirectory, string _modelName = "Trial1")
{
this.modelDirectory = _modelDirectory;
this.modelName = _modelName;
//set the following flag to true to attach to an existing instance of the program
//otherwise a new instance of the program will be started
AttachToInstance = false;
//set the following flag to true to manually specify the path to SAP2000.exe
//this allows for a connection to a version of SAP2000 other than the latest installation
//otherwise the latest installed version of SAP2000 will be launched
SpecifyPath = false;
//if the above flag is set to true, specify the path to SAP2000 below
string ProgramPath;
ProgramPath = "C:\\Program Files (x86)\\Computers and Structures\\SAP2000 20\\SAP2000.exe";
//full path to the model
//set it to the desired path of your model
try
{ System.IO.Directory.CreateDirectory(ModelDirectory); } //Model Directory is input to the constructor.
catch (Exception /*ex*/)
{ Console.WriteLine("Could not create directory: " + ModelDirectory); }
modelPath = ModelDirectory + System.IO.Path.DirectorySeparatorChar + ModelName; //model name is input to the constructor.
//dimension the SapObject as cOAPI type
cOAPI mySapObjectAPI = null;
//Use ret to check if functions return successfully (ret = 0) or fail (ret = nonzero)
int ret = 0;
if (AttachToInstance)
{
//attach to a running instance of SAP2000
try
{
//get the active SapObject
mySapObjectAPI = (cOAPI)System.Runtime.InteropServices.Marshal.GetActiveObject("CSI.SAP2000.API.SapObject");
}
catch (Exception /*ex*/)
{
Console.WriteLine("No running instance of the program found or failed to attach.");
return;
}
}
else
{
//create API helper object from which we create SAPAPI object from which we Create SAPModel//
cHelper myHelper;
try
{
myHelper = new Helper();
}
catch (Exception /*ex*/)
{
Console.WriteLine("Cannot create an instance of the Helper object");
return;
}
if (SpecifyPath)
{
//'create an instance of the SapObject from the specified path
try
{
//create SapObject
mySapObjectAPI = myHelper.CreateObject(ProgramPath);
}
catch (Exception /*ex*/)
{
Console.WriteLine("Cannot start a new instance of the program from " + ProgramPath);
return;
}
}
else
{
//'create an instance of the SapObject from the latest installed SAP2000
try
{
//create SapObject
mySapObjectAPI = myHelper.CreateObjectProgID("CSI.SAP2000.API.SapObject");
}
catch (Exception /*ex*/)
{
Console.WriteLine("Cannot start a new instance of the program.");
return;
}
}
//start SAP2000 application
ret = mySapObjectAPI.ApplicationStart(eUnits.kN_m_C);
}
//create SapModel object
mySapObjectModel = mySapObjectAPI.SapModel;
}
static void Main(string[] args)
{
//set the following flag to true to attach to an existing instance of the program
//otherwise a new instance of the program will be started
bool AttachToInstance;
AttachToInstance = false;
//set the following flag to true to manually specify the path to SAP2000.exe
//this allows for a connection to a version of SAP2000 other than the latest installation
//otherwise the latest installed version of SAP2000 will be launched
bool SpecifyPath;
SpecifyPath = true;
//if the above flag is set to true, specify the path to SAP2000 below
string ProgramPath;
ProgramPath = "C:\\Program Files\\Computers and Structures\\SAP2000 19\\SAP2000.exe";
//full path to the model
//set it to the desired path of your model
string ModelDirectory = "C:\\CSiAPIexample";
try
{
System.IO.Directory.CreateDirectory(ModelDirectory);
}
catch (Exception ex)
{
Console.WriteLine("Could not create directory: " + ModelDirectory);
}
string ModelName = "API_1-001.sdb";
string ModelPath = ModelDirectory + System.IO.Path.DirectorySeparatorChar + ModelName;
//dimension the SapObject as cOAPI type
cOAPI mySapObject = null;
//Use ret to check if functions return successfully (ret = 0) or fail (ret = nonzero)
int ret = 0;
if (AttachToInstance)
{
//attach to a running instance of SAP2000
try
{
//get the active SapObject
mySapObject = (cOAPI)System.Runtime.InteropServices.Marshal.GetActiveObject("CSI.SAP2000.API.SapObject");
}
catch (Exception ex)
{
Console.WriteLine("No running instance of the program found or failed to attach.");
return;
}
}
else
{
//create API helper object
cHelper myHelper;
try
{
myHelper = new Helper();
}
catch (Exception ex)
{
Console.WriteLine("Cannot create an instance of the Helper object");
return;
}
if (SpecifyPath)
{
//'create an instance of the SapObject from the specified path
try
{
//create SapObject
mySapObject = myHelper.CreateObject(ProgramPath);
}
catch (Exception ex)
{
Console.WriteLine("Cannot start a new instance of the program from " + ProgramPath);
return;
}
}
else
{
//'create an instance of the SapObject from the latest installed SAP2000
try
{
//create SapObject
mySapObject = myHelper.CreateObjectProgID("CSI.SAP2000.API.SapObject");
}
catch (Exception ex)
{
Console.WriteLine("Cannot start a new instance of the program.");
return;
}
}
//start SAP2000 application
ret = mySapObject.ApplicationStart();
}
//create SapModel object
cSapModel mySapModel;
mySapModel = mySapObject.SapModel;
//initialize model
ret = mySapModel.InitializeNewModel((eUnits.kip_in_F));
//create new blank model
ret = mySapModel.File.NewBlank();
//define material property
ret = mySapModel.PropMaterial.SetMaterial("CONC", eMatType.Concrete, -1, "", "");
//assign isotropic mechanical properties to material
ret = mySapModel.PropMaterial.SetMPIsotropic("CONC", 3600, 0.2, 0.0000055, 0);
//define rectangular frame section property
ret = mySapModel.PropFrame.SetRectangle("R1", "CONC", 12, 12, -1, "", "");
//define frame section property modifiers
double[] ModValue = new double[8];
int i;
for (i = 0; i <= 7; i++)
{
ModValue[i] = 1;
}
ModValue[0] = 1000;
ModValue[1] = 0;
ModValue[2] = 0;
ret = mySapModel.PropFrame.SetModifiers("R1", ref ModValue);
//switch to k-ft units
ret = mySapModel.SetPresentUnits(eUnits.kip_ft_F);
//add frame object by coordinates
string[] FrameName = new string[3];
string temp_string1 = FrameName[0];
string temp_string2 = FrameName[0];
ret = mySapModel.FrameObj.AddByCoord(0, 0, 0, 0, 0, 10, ref temp_string1, "R1", "1", "Global");
FrameName[0] = temp_string1;
ret = mySapModel.FrameObj.AddByCoord(0, 0, 10, 8, 0, 16, ref temp_string1, "R1", "2", "Global");
FrameName[1] = temp_string1;
ret = mySapModel.FrameObj.AddByCoord(-4, 0, 10, 0, 0, 10, ref temp_string1, "R1", "3", "Global");
FrameName[2] = temp_string1;
//assign point object restraint at base
string[] PointName = new string[2];
bool[] Restraint = new bool[6];
for (i = 0; i <= 3; i++)
{
Restraint[i] = true;
}
for (i = 4; i <= 5; i++)
{
Restraint[i] = false;
}
ret = mySapModel.FrameObj.GetPoints(FrameName[0], ref temp_string1, ref temp_string2);
PointName[0] = temp_string1;
PointName[1] = temp_string2;
ret = mySapModel.PointObj.SetRestraint(PointName[0], ref Restraint, 0);
//assign point object restraint at top
for (i = 0; i <= 1; i++)
{
Restraint[i] = true;
}
for (i = 2; i <= 5; i++)
{
Restraint[i] = false;
}
ret = mySapModel.FrameObj.GetPoints(FrameName[1], ref temp_string1, ref temp_string2);
PointName[0] = temp_string1;
PointName[1] = temp_string2;
ret = mySapModel.PointObj.SetRestraint(PointName[1], ref Restraint, 0);
//refresh view, update (initialize) zoom
bool temp_bool = false;
ret = mySapModel.View.RefreshView(0, temp_bool);
//add load patterns
temp_bool = true;
ret = mySapModel.LoadPatterns.Add("1", eLoadPatternType.Other, 1, temp_bool);
ret = mySapModel.LoadPatterns.Add("2", eLoadPatternType.Other, 0, temp_bool);
ret = mySapModel.LoadPatterns.Add("3", eLoadPatternType.Other, 0, temp_bool);
ret = mySapModel.LoadPatterns.Add("4", eLoadPatternType.Other, 0, temp_bool);
ret = mySapModel.LoadPatterns.Add("5", eLoadPatternType.Other, 0, temp_bool);
ret = mySapModel.LoadPatterns.Add("6", eLoadPatternType.Other, 0, temp_bool);
ret = mySapModel.LoadPatterns.Add("7", eLoadPatternType.Other, 0, temp_bool);
//assign loading for load pattern 2
ret = mySapModel.FrameObj.GetPoints(FrameName[2], ref temp_string1, ref temp_string2);
PointName[0] = temp_string1;
PointName[1] = temp_string2;
double[] PointLoadValue = new double[6];
PointLoadValue[2] = -10;
ret = mySapModel.PointObj.SetLoadForce(PointName[0], "2", ref PointLoadValue, false, "Global", 0);
ret = mySapModel.FrameObj.SetLoadDistributed(FrameName[2], "2", 1, 10, 0, 1, 1.8, 1.8, "Global", System.Convert.ToBoolean(-1), System.Convert.ToBoolean(-1), 0);
//assign loading for load pattern 3
ret = mySapModel.FrameObj.GetPoints(FrameName[2], ref temp_string1, ref temp_string2);
PointName[0] = temp_string1;
PointName[1] = temp_string2;
PointLoadValue = new double[6];
PointLoadValue[2] = -17.2;
PointLoadValue[4] = -54.4;
ret = mySapModel.PointObj.SetLoadForce(PointName[1], "3", ref PointLoadValue, false, "Global", 0);
//assign loading for load pattern 4
ret = mySapModel.FrameObj.SetLoadDistributed(FrameName[1], "4", 1, 11, 0, 1, 2, 2, "Global", System.Convert.ToBoolean(-1), System.Convert.ToBoolean(-1), 0);
//assign loading for load pattern 5
ret = mySapModel.FrameObj.SetLoadDistributed(FrameName[0], "5", 1, 2, 0, 1, 2, 2, "Local", System.Convert.ToBoolean(-1), System.Convert.ToBoolean(-1), 0);
ret = mySapModel.FrameObj.SetLoadDistributed(FrameName[1], "5", 1, 2, 0, 1, -2, -2, "Local", System.Convert.ToBoolean(-1), System.Convert.ToBoolean(-1), 0);
//assign loading for load pattern 6
ret = mySapModel.FrameObj.SetLoadDistributed(FrameName[0], "6", 1, 2, 0, 1, 0.9984, 0.3744, "Local", System.Convert.ToBoolean(-1), System.Convert.ToBoolean(-1), 0);
ret = mySapModel.FrameObj.SetLoadDistributed(FrameName[1], "6", 1, 2, 0, 1, -0.3744, 0, "Local", System.Convert.ToBoolean(-1), System.Convert.ToBoolean(-1), 0);
//assign loading for load pattern 7
ret = mySapModel.FrameObj.SetLoadPoint(FrameName[1], "7", 1, 2, 0.5, -15, "Local", System.Convert.ToBoolean(-1), System.Convert.ToBoolean(-1), 0);
//switch to k-in units
ret = mySapModel.SetPresentUnits(eUnits.kip_in_F);
//save model
ret = mySapModel.File.Save(ModelPath);
//run model (this will create the analysis model)
ret = mySapModel.Analyze.RunAnalysis();
//initialize for SAP2000 results
double[] SapResult = new double[7];
ret = mySapModel.FrameObj.GetPoints(FrameName[1], ref temp_string1, ref temp_string2);
PointName[0] = temp_string1;
PointName[1] = temp_string2;
//get SAP2000 results for load patterns 1 through 7
int NumberResults = 0;
string[] Obj = new string[1];
string[] Elm = new string[1];
string[] LoadCase = new string[1];
string[] StepType = new string[1];
double[] StepNum = new double[1];
double[] U1 = new double[1];
double[] U2 = new double[1];
double[] U3 = new double[1];
double[] R1 = new double[1];
double[] R2 = new double[1];
double[] R3 = new double[1];
for (i = 0; i <= 6; i++)
{
ret = mySapModel.Results.Setup.DeselectAllCasesAndCombosForOutput();
ret = mySapModel.Results.Setup.SetCaseSelectedForOutput(System.Convert.ToString(i + 1), System.Convert.ToBoolean(-1));
if (i <= 3)
{
ret = mySapModel.Results.JointDispl(PointName[1], eItemTypeElm.ObjectElm, ref NumberResults, ref Obj, ref Elm, ref LoadCase, ref StepType, ref StepNum, ref U1, ref U2, ref U3, ref R1, ref R2, ref R3);
U3.CopyTo(U3, 0);
SapResult[i] = U3[0];
}
else
{
ret = mySapModel.Results.JointDispl(PointName[0], eItemTypeElm.ObjectElm, ref NumberResults, ref Obj, ref Elm, ref LoadCase, ref StepType, ref StepNum, ref U1, ref U2, ref U3, ref R1, ref R2, ref R3);
U1.CopyTo(U1, 0);
SapResult[i] = U1[0];
}
}
//close SAP2000
mySapObject.ApplicationExit(false);
mySapModel = null;
mySapObject = null;
//fill SAP2000 result strings
string[] SapResultString = new string[7];
for (i = 0; i <= 6; i++)
{
SapResultString[i] = string.Format("{0:0.00000}", SapResult[i]);
ret = (string.Compare(SapResultString[i], 1, "-", 1, 1, true));
if (ret != 0)
{
SapResultString[i] = " " + SapResultString[i];
}
}
//fill independent results
double[] IndResult = new double[7];
string[] IndResultString = new string[7];
IndResult[0] = -0.02639;
IndResult[1] = 0.06296;
IndResult[2] = 0.06296;
IndResult[3] = -0.2963;
IndResult[4] = 0.3125;
IndResult[5] = 0.11556;
IndResult[6] = 0.00651;
for (i = 0; i <= 6; i++)
{
IndResultString[i] = string.Format("{0:0.00000}", IndResult[i]);
ret = (string.Compare(IndResultString[i], 1, "-", 1, 1, true));
if (ret != 0)
{
IndResultString[i] = " " + IndResultString[i];
}
}
//fill percent difference
double[] PercentDiff = new double[7];
string[] PercentDiffString = new string[7];
for (i = 0; i <= 6; i++)
{
PercentDiff[i] = (SapResult[i] / IndResult[i]) - 1;
PercentDiffString[i] = string.Format("{0:0%}", PercentDiff[i]);
ret = (string.Compare(PercentDiffString[i], 1, "-", 1, 1, true));
if (ret != 0)
{
PercentDiffString[i] = " " + PercentDiffString[i];
}
}
//display message box comparing results
string msg = "";
msg = msg + "LC Sap2000 Independent %Diff\r\n";
for (i = 0; i <= 5; i++)
{
msg = msg + string.Format("{0:0}", i + 1) + " " + SapResultString[i] + " " + IndResultString[i] + " " + PercentDiffString[i] + "\r\n";
}
msg = msg + string.Format("{0:0}", i + 1) + " " + SapResultString[i] + " " + IndResultString[i] + " " + PercentDiffString[i];
Console.WriteLine(msg);
Console.ReadKey();
}