Alexander Sandy Calder Essays - Kinetic Art, Motion,

Alexander Sandy Calder Alexander Sandy Calder was born into a family of renowned artists who encouraged him to create from a very young age. As a boy, he had his own workshop where he made toys for himself and his sister. He received a degree in mechanical engineering in 1919 but soon after decided to pursue a career as an artist. Calder attended classes at the Art Students League in New York from 1923 to 1926, supporting himself by working as an illustrator. In 1926 Calder arrived in Paris where he developed his Cirque Calder,a work of performance art employing small-scale circus figures he sculpted from wire, wood, cloth, and other materials. Through these elaborate performances, Calder met members of the Parisian avant-garde. At the same time, Calder sculpted three- dimensional figurative works using continuous lengths of wire, which critics described as drawings in space. He explored ways to sculpt volume without mass and to captured the essence of his subject through an economy of line and articulated movement. Calder's wire works then became increasingly gestural, implying motion. By the end of 1930, this direction yielded his first purely abstract sculptures. After translating drawing into three dimensions, Calder envisioned putting paintings into motion. He developed constructions of abstract shapes that can shift and change the composition as the elements respond to air currents. These sculptures of wire and sheet metal (or other materials) are called mobiles. A mobile laid flat exists only as a skeleton, a reminder of its possibilities, but when suspended it seems to come alive. Calder also developed stabiles, static sculptures that suggest volume in multiple flat planes, as well as standing mobiles, in which a mobile is balanced on top of a stabile. Calder furthered his work by developing a monumental scale. His later objects were huge sculptures of arching lines and graceful abstract shapes that now inhabit public plazas worldwide. Calder was an artist of great originality who defined volume without mass and incorporated movement and time in art. His inventions redefined certain basic principles of sculpture and have established him as the most innovative sculptor of the twentieth century. Alexander Calder, America's first abstract artist of international renown, is forever associated with his invention of the mobile. Born into a Philadelphia family of sculptors, he studied first as a mechanical engineer and then as a painter in the style of the Ashcan School. In 1926, Calder left for Paris, then Europe's cultural capital. There he attracted the attention of the avant-garde with his amusing performances with a partly-mechanized miniature circus of wire and cloth figures. By 1930 he had developed freely moving sculptures of arcs and spheres. Calder's mobiles were squarely within the spirit of the times, from their engagement with machine technology to their use of abstraction as a universal language of creative truth. Linked to Dada and Surrealism by playfulness and chance arrangement, his sculpture responded to Constructivism by energizing art's elements in the viewer's space. Astronomy Essays

How to Create a Delphi Form from a String

How to Create a Delphi Form from a String There may be instances when you do not know the exact class type of a form object. You may only have the string variable carrying the name of the forms class, such as â€Å"TMyForm†. Note that the Application.CreateForm() procedure expects a variable of type TFormClass for its first parameter. If you can provide a TFormClass type variable (from a string), you will be able to create a form from its name. The FindClass() Delphi function locates a class type from a string. The search goes through all registered classes. To register a class, a procedure RegisterClass() can be issued. When the FindClass function returns a TPersistentClass value, cast it to TFormClass, and a new TForm object will be created. Sample Exercise Create a new Delphi project and name the main form: MainForm (TMainForm).Add three new forms to the project, name them:FirstForm (TFirstForm)SecondForm (TSecondForm)ThirdForm (TThirdForm)Remove the three new forms from the Auto-create Forms list in the Project-Options dialog.Drop a ListBox on the MainForm and add three strings: TFirstForm, TSecondForm, and TThirdForm.   procedure TMainForm.FormCreate( Sender: TObject);begin RegisterClass(TFirstForm); RegisterClass(TSecondForm); RegisterClass(TThirdForm);end; In the MainForms OnCreate event register the classes: procedure TMainForm.CreateFormButtonClick( Sender: TObject);var s : string;begin s : ListBox1.Items[ListBox1.ItemIndex]; CreateFormFromName(s);end; Once the button is clicked, find the selected forms type name, and call a custom CreateFormFromName procedure: procedure CreateFormFromName( const FormName : string);var fc : TFormClass; f : TForm;begin fc : TFormClass(FindClass(FormName)); f : fc.Create(Application); f.Show;end; (* CreateFormFromName *) If the first item is selected in the list box, the s variable will hold the TFirstForm string value. The CreateFormFromName will create an instance of the TFirstForm form.